2 1 8 
Ma³gorzata Jakubiak 
Indicators of Currency Crisis: Empirical 
Analysis of Some Emerging and Transition 
Economies 
W a r s a w , 2 0 0 0
Materials published here have a working paper character. They can be subject to further 
publication. The views and opinions expressed here reflect Author’s point of view and 
not necessarily those of CASE. 
This paper was prepared for the research project no. 0144/H02/99/17 entitled "Analiza 
przyczyn i przebiegu kryzysów walutowych w krajach Azji, Ameryki £aciñskiej i Europy 
OErodkowo-Wschodniej: wnioski dla Polski i innych krajów transformuj¹cych siê" (Analysis of 
Currency Crises in Countries of Asia, Latin America and Central-Eastern Europe: Lessons 
for Poland and Other Transition Countries" financed by the State Committee for Scientific 
Research (KBN) in the years 1999–2001. 
© CASE – Center for Social and Economic Research, Warsaw 2000 
Graphic Design: Agnieszka Natalia Bury 
DTP: CeDeWu – Centrum Doradztwa i Wydawnictw “Multi-Press” sp. z o.o. 
ISSN 1506-1701, ISBN 83-7179-239-X 
Publisher: 
CASE – Center for Social and Economic Research 
ul. Sienkiewicza 12, 00-944 Warsaw, Poland 
tel.: (4822) 622 66 27, 828 61 33, fax (4822) 828 60 69 
e-mail: case@case.com.pl 
www.case.com.pl
Contents 
Abstract 5 
1. Introduction 6 
2. Definition and Types of Financial Crises 6 
3. Indicators of External Vulnerability to a Financial Crisis 7 
4. Loss of Reserves and Nominal Depreciation 14 
5. Fall in Demand for Money 16 
6. Real Interest Rate Differentials 17 
7. Conclusions 17 
References 20 
Data Sources 22 
Appendix: What Was Happening with Hard Currency Deposits? 23
Ma³gorzata Jakubiak 
Junior Researcher at the CASE Foundation 
The author holds MA in International Economics from the University of Sussex and MA in 
Economics from the University of Warsaw. Since 1997 junior researcher at the Center for 
Social and Economic Research – CASE. Her research interests focus on issues related to 
transition, particularly international trade and some aspects of open economy 
macroeconomics. 
4 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
Abstract 
This paper focuses on the measurement of a contemporaneous currency crisis. The 
analysis covers 14 "emerging" or "transforming" economies that experienced episodes of 
currency crises over the last decade. It adds to well-known examples relatively little-known 
evidence on the crisis depth in some of the CIS countries. Following the 
Eichengreen, Rose, and Wyplosz (1994) definition of a currency crisis, the emphasis is 
primarily put on the examination of changes in relative reserves, exchange rates, and real 
interest rates during periods of exchange rate pressure. Other measures of the depth of 
a currency crisis as well as measures of external vulnerability are also discussed. The 
findings support the adequacy of the Eichengreen, Rose, and Wyplosz (1994) definition in 
analyzing crisis developments in emerging economies. 
5 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ...
1. Introduction 
The aim of this paper is to provide a comprehensive definition of a contemporaneous 
currency crisis and to illustrate this definition by examples of currency crises of the 1990s. 
The discussion follows a text on theoretical aspects of currency crises [Antczak, 2000], 
where the occurrence of such crisis is described [after Eichengreen et al., 1994] as 
a change in either a country's exchange rate, its level of foreign reserves, or its interest 
rates. Thus, in the following parts, there is an illustration of what was happening with 
these – and some other – macroeconomic variables during the times of most recent 
currency crises. 
In order to give some background, the research starts from description of pre-crisis 
developments that show external vulnerability of countries in question. The analysis is 
restricted to so called "emerging" or "transforming" economies. And adds to the well-known 
examples relatively little known evidence on the crisis depth in some of the CIS 
countries. The paper concludes with the assessment of the adequacy of proposed 
definition in the measurement of recent crises. 
2. Definition and Types of Financial Crises 
Financial crises are usually grouped into the three broad categories: currency 
crises, banking crises, and foreign debt crises [Aziz et. al, 2000]. A currency crisis 
occurs when a speculative attack on a currency results in a sharp devaluation (or 
depreciation) of the exchange rate, or when authorities try to defend the currency 
using its foreign reserves or sharply raising interest rates [Eichengreen et. al, 1994]. 
A banking crisis usually demonstrates itself in bank runs or failures which "induce 
banks to suspend the internal convertibility of their liabilities or which compel the 
government to intervene to prevent this by extending assistance on a large scale" [Aziz 
et. al, 2000: 5]. The causes of banking crisis frequently lie in a prolonged deterioration 
of banks' assets quality. When a country cannot service its foreign debt, we speak 
about the debt crisis. 
However, there are many cases, where elements of all or of any two of the described 
types of financial crises may take place simultaneously. Moreover, one type of crisis may 
develop itself into another. This is to say that often the symptoms of a currency crisis may 
be also linked with other financial problems in the economy, and it is sometimes hard to 
6 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
isolate the "pure" currency case. There are examples of both simultaneous symptoms of 
banking, currency, and debt crisis (East Asia, Mexico), as well as banking crisis preceding 
currency crisis (Bulgaria) in the countries included in the sample. 
This paper concentrates on the measures of a currency crisis. Following 
Eichengreen, Rose, and Wyplosz (1994), the attention is primarily put on the examination 
of changes in relative reserves, exchange rates, and real interest rates during periods of 
exchange rate pressures. Because one of the aims of this study is to describe the currency 
crises, some other symptoms of the loss of confidence in domestic money are also 
included. These are: shrinking money demand and sudden real exchange rate 
depreciation. 
Since the measurement and dating of currency crises pose some difficulties, episodes 
of significant currency pressures were identified ex ante, based on existing information in 
the economic literature on the subject. Only then statistical tools were applied to 
describe their characteristics. 
The analysis covers 14 emerging economies that experienced episodes of currency 
crises over the last decade. These are: Argentina (1995 crisis), Brazil (1999), Bulgaria 
(1997), the Czech Republic (1997), Georgia (1998), Indonesia (1997), Korea (1997), the 
Kyrgyz Republic (1998), Malaysia (1997), Mexico (1994), Moldova (1998), Russian 
Federation (1998), Thailand (1997), and Ukraine (1998) [1]. Due to the lack of data on 
individual time series, some of these countries had to be excluded from discussion on 
particular indicators. 
The rest of the paper is organized as follows: reserve-based indicators of external 
vulnerability plus real exchange rate developments are discussed first, followed by the fall 
in reserves and nominal depreciation at a crisis date, then by the sudden fall in demand 
for money, and interest rates differentials. Assessment of the adequacy of proposed 
definition of the measurement of recent currency crises is given in conclusions. 
3. Indicators of External Vulnerability to a Financial Crisis 
Warning signals of financial distress had been present in the majority of sample 
economies months before the currency crisis hit. This part shows how financially fragile 
these economies have been by comparing pre-crisis reserve-based indicators of external 
vulnerability and real exchange rate developments. 
7 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ... 
[1] More precise timing of each crisis is given in Table 2.
3.1. Reserves in Months of Imports 
The traditionally used measure in assessing the reserve adequacy is external 
reserves in months of imports of goods and services. It is a useful indicator of reserve 
needs for countries with limited access to capital markets. However, since there is no 
reference to capital account, it is claimed that there is a weak relation between 
reserves over imports and the occurrence or depth of crises in the more recent 
periods of financial turmoil [IMF, 2000]. 
It is commonly agreed that three months is the minimum period during which 
a country can continue to support its current level of imports if all other inflows and 
outflows cease. As it can be seen from Table 1, this condition has never been met by 
Ukraine, Russia, Georgia, the Kyrgyz Republic, and Mexico. On the contrary, East 
Asian countries and Brazil recorded relatively safe reserves to imports ratio in 1997 
and in 1998. Foreign reserves held by Argentina in 1995 fell when compared to 
previous years, but were still sufficient to support, on average, more than 4 months 
of imports. 
The low ratio of reserves in terms of imports does not seem to describe well crisis 
economies included in the sample, therefore there is a need to examine other measures 
of reserve adequacy. 
3.2. Reserves over Short-term External Debt 
Measure that compares net reserves to short-term external debt captures well risks 
associated with adverse developments in international capital markets. It shows how 
quickly a country would be forced to adjust if it were cut off from external borrowing 
[IMF, 2000]. It is claimed that this is the most important indicator of reserve adequacy in 
countries with significant but uncertain access to capital markets. A smaller ratio suggests 
greater incidence and depth of crisis [IMF, 2000]. 
IMF suggests that reserves should at least exceed official and officially guaranteed 
short-term debt [IMF, 2000: 15]. The most recommended period for judging the reserves 
to short-term debt ratio is the month prior to the crisis date, that is before a crisis took 
full effect and impacted reserve levels. 
8 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
9 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ... 
Table 1. Reserves in Months of Imports 
1992 1993 1994 1995 1996 1997 1998 
Argentina 4.289 4.917 6.181 4.280 4.722 5.989 7.044 
Brazil 5.701 5.884 6.976 6.905 8.219 8.612 8.813 
Bulgaria 1.796 3.175 1.488 3.421 6.085 
Czech Republic 1.247 2.013 3.531 4.663 3.778 3.943 
Georgia 2.280 1.869 1.812 
Indonesia 3.311 2.966 2.438 2.563 3.071 5.569 5.453 
Korea 1.935 1.979 1.711 2.019 2.418 3.131 4.182 
Kyrgyz Republic 1.165 0.413 0.873 1.365 1.473 2.029 
Malaysia 3.375 3.411 4.351 3.304 3.273 4.355 3.720 
Mexico 2.926 2.989 2.775 1.437 1.707 2.139 2.642 
Russian Fed. 1.083 0.761 1.223 1.649 2.806 1.823 
Thailand 4.461 4.421 4.053 4.782 6.774 7.989 6.856 
Ukraine 0.657 0.180 0.101 0.708 0.635 1.867 1.304 
Source: Own calculations on the basis of data from IFS, Bulgarian National Bank, Georgian Economic Trends No. 1/2000, and Ukrainian Statistical Bulletin. 
Notes: Average level of total reserves minus gold and imports over the next 12 months is used. Actual data on imports are included only in the ratios for 
1998.
3.5 
3.0 
2.5 
2.0 
1.5 
1.0 
0.5 
If we were to characterize the pre-crisis vulnerability by the reserves to short-term 
debt ratio, Mexico, Korea, Indonesia, Russia, Bulgaria, and Thailand would be among 
most severely affected, with international reserves well below their short-term debt 
obligations. Argentina also recorded a very low level of reserves to short-term external 
debt ratio, but no earlier than at the crisis date. Although the ratio declines for Malaysia 
and Brazil the closer we move to the crisis date, with its value above 1.5 it still does not 
indicate any danger of a currency crisis. High values for Ukraine (above 4) and – probably 
– Moldova reflect improper classification of reserves. 
3.3. Reserves to Reserve Money 
The vulnerability of an economy to a financial turbulence can be also captured by the 
developments in the ratio of reserves to a measure of money. The problem, however, 
appears when deciding which monetary aggregate should be used. Traditionally, it is the 
ratio of reserves to broad money. Yet, this poses difficulties, as it is hard to interpret when 
the demand for money is generally low. Another puzzle is connected with the inclusion 
10 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak 
Figure 1. Reserves over Short-term Debt 
0.0 
month t-3 month t-2 month t-1 crisis 
Ukraine 
Malaysia 
Brazil 
Thailand 
Argentina 
Indonesia 
Russian Federation 
Bulgaria 
Korea Republic 
Mexico 
Source: Own calculations on the basis of IFS, Global Development Finance, and World Development 
Indicators databases. 
Notes: The stock of reserves is taken from the months prior to the crisis dates, and at the crisis dates. 
Crisis dates are listed in Table1. Short-term external debt is the end-year value reported in GDF.
of hard currency deposits in the broad money aggregates. It is then hard to differencible 
between a change in the demand for domestic currency and a demand for foreign 
currency. 
The analysis of evolution of hard currency deposits held in commercial banks during 
the crises (see the Appendix) shows the validity of this last doubt. The section on money 
demand further confirms the inappropriateness of looking at the broad money aggregates 
in the case of low-monetization countries of our sample. 
Therefore, in assessing the financial fragility of an economy, author concentrates here 
on the ratio of gross reserves to reserve money (the latter otherwise known as monetary 
base). This measure has obvious advantages, that makes its use the most suitable here. 
First of all, it shows well by how much the reserve money are backed by the official 
reserves. And since, among all the monetary aggregates, it is the reserve money, which is 
the most affected by changes in the exchange rate, it seems appropriate to examine it 
here. Again, as with all the reserve-based indicators, its importance is especially high 
when judging the reserve adequacy under fixed exchange regimes, which credibility 
needs to be established [IMF, 2000:1]. The rationale behind this measure is that an 
unstable demand for high-powered money suggests greater probability of a capital flight. 
Problems with the liquidity within the monetary system characterize well pre-crisis 
months in Argentina, Brazil, Bulgaria, Russia, Ukraine, Georgia, the Kyrgyz Republic, and 
to some extent in Mexico (see Chart 2 and 3). East Asian economies recorded relatively 
safe values of this measure in the months prior to the Asian crisis, but nevertheless – 
substantially lower during the last months preceding the crisis – than at other times. 
A ratio of reserves to reserve money falling below one indicates potential difficulties with 
the commitment to a nominal anchor in all of these countries. This indicator does not 
have any importance when referring to the case of Malaysia which kept floating exchange 
rate regime around the crisis time. 
As it has already been noted, relative importance of indicators based on monetary 
aggregates for the countries in our sample is discussed in the sections that follow. These 
analyses show that the meaning of monetary measures is especially weak in Ukraine. Low 
monetization coupled with a very little change in hard currency deposits during the 1998 
crisis show overall low confidence in the domestic currency and in the banking system. 
3.4. Real Exchange Rate Developments 
Real appreciation of a currency may reflect a loss of international competitiveness, 
and increasing expectations of an exchange rate adjustment as the appreciation is 
11 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ...
12 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak 
Figure 2. Reserves over Reserve Money 
2.5 
2.0 
1.5 
1.0 
0.5 
0 
m-12 m-9 m-6 m-3 crisis m+3 m+6 m+9 m+12 
Argentina 
Brazil 
Bulgaria 
Czech Republic 
Georgia 
Source: Own calculations based on IFS IMF. 
Figure 3. Reserves over Reserve Money 
4 
3. 5 
3 
2. 5 
2 
1. 5 
1 
0. 5 
0 
m-12 m-9 m-6 m-3 crisis m+3 m+6 m+9 m+12 
Korea 
Kyrgyz Republic 
Malaysia 
Mexico 
Moldova 
Russia 
Thailand 
Ukraine 
Source: Own calculations based on IFS IMF.
13 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ... 
expected to worsen the current account. If the real exchange rate appreciation leads to 
a misaligned currency value, the current account deficit may be less sustainable in such 
situation. Then the large current account deficit coupled with the perception that 
a currency is overvalued may lead to a balance of payments type of crisis. However, not 
every real appreciation creates current account sustainability problems (Balassa- 
Samuelson effect, return to its long-run value after an initial overshooting). 
We can see from Figure 4, that real effective exchange rates have been indeed 
appreciating through several months prior to the crises in Russia, Malaysia, the Czech 
Republic, and to some extent in Moldova. The same has been true for Bulgaria but when we 
consider the 1996 banking crisis, which preceded currency crash. The real effective exchange 
rate has not been appreciating in Ukraine during at least six months prior to the crisis. 
Data from the International Financial Statistics of the IMF were used to describe the 
evolution of real effective exchange rates. These data are available only for some of the 
countries in the sample. Therefore, CPI based real exchange rates versus the US dollar 
are used to show these developments in other economies (see Figure 5). The results of 
real appreciation is not very much visible, partly because some of the countries 
maintained peg to the dollar. 
Figure 4. Real Effective Exchange Rates 
150 
140 
130 
120 
110 
100 
90 
80 
70 
60 
m-24 m-18 m-12 m-6 crisis m+6 m+12 m+18 m+24 
Czech Republic 
Malaysia 
Moldova 
Russia 
Ukraine 
Bulgaria 
Source: IFS IMF.
120 
100 
80 
60 
40 
Beginning of a currency crisis is marked by the large real exchange rate depreciation 
in every economy. Next part of the paper describes changes that took place precisely at 
the crisis time. 
4. Loss of Reserves and Nominal Depreciation 
International reserves held by monetary authorities are available for financing external 
payments imbalances, thus helping to maintain liquidity, allow to absorb shocks, and 
provide confidence in the authorities commitment to support the value of domestic 
currency. Since it is very costly for a country to run short of liquidity, maintaining 
a sufficient level of external assets is important in preventing currency crises. 
When there is a sudden change in the direction of capital flows and capital starts 
flowing out of a country, this outflow can be accommodated through a reserve decline, 
without any change in the central bank interest or exchange rates. However, if monetary 
authorities decide to devalue the currency or alter the level of interest rates, most of such 
a shock can be absorbed through these changes [Berg, 1999]. 
14 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak 
Figure 5. Real Exchange Rates, CPI Based 
20 
m-24 m-18 m-12 m-6 crisis m+6 m+12 m+18 m+24 
Brazil 
Indonesia 
Korea 
Mexico 
Thailand 
Source: Own calculations based on IFS IMF.
Table 2 provides data on reserve losses in 14 economies that suffered from 
a currency crisis in the 1990s. There were four economies – Malaysia, Indonesia, Bulgaria, 
and Kyrgyz Republic – whose reserve assets fell by less than 20% at the time of a crisis. 
Malaysia and Bulgaria were the only countries in the sample that kept floating exchange 
rate regimes when financial crisis occurred, and lost "only" less than 20% of its external 
reserves. However, Malaysian reserves deteriorated again during the next year and 
started to rebuild at the end of 1998. Bulgaria experienced a banking crisis in 1996, during 
which the central bank has already severely depleted its exchange reserves. The 
monetary authorities of Indonesia decided to float the rupiah in August 1997, following 
intensified pressure on the currency since the Thai baht was floated in July. The external 
reserves fell then only by $1.1 billion (5.2% from June 1997), but they continued to fall, 
and the lowest level was recorded in February 1998. By then, international reserves of 
Indonesia fell by 24% (4.8 $ billion) when compared to the pre-crisis period. 
At the other end of the spectrum, there are countries affected by the Tequila crisis of 
1994–1995, Russia, Ukraine, who lost over 40% of their external reserves in 1998, and 
also Brazil. Russian central bank lost over 40% of its external reserves in just one month 
15 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ... 
Table 2. The Severity of the Currency Crises Measured by Reserve Losses 
Country Crisis date Loss of reserves 
Reserves/M2 
at a crisis date 
in percent 
[2] 
Nominal 
depreciation against 
USD at a crisis date 
Mexico Dec 1994 8.2% 64.5% 54.6% 
Argentina Mar 1995 18.3% 41% 0% 
Bulgaria Feb 1997 25.8% 16.8% 100.98% 
Czech Republic May 1997 29.6% 23.0% 5.44% 
Thailand Jul 1997 23.3% 23% 24.34% 
Malaysia Jul 1997 23.2% 18.4% 4.19% 
Indonesia Aug 1997 18.3% 5.2% 16.78% 
Korea Dec 1997 17.0% 33.2% 45.64% 
Russian Fed. Aug 1998 14.9% 40.6% 26.72% 
Ukraine Sep 1998 25.2% 58.1% 51.11% 
Moldova Nov 1998 111.2% 35% 55.41% 
Kyrgyz Republic Nov 1998 87.96% 18.71% 19.40% 
Georgia Dec 1998 59.9% 24.5% 16.8% 
Brazil Jan 1999 24.2% 53.5% 64.08% 
Source: Own calculations based of IFS data. 
[2] Monetary authorities' reserve loss is calculated from the month the stock of these reserves peaks until 
the crisis date [after Choueiri and Kaminsky, 1999].
16 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak 
trying to defend the exchange rate band. At the end of 1998, foreign reserves of the 
central bank of Moldova fell to the 1994 levels. 
5. Fall in Demand for Money 
Demand for money is analyzed here for two reasons. First of all, a sudden fall in the 
demand for a currency indicates the substitution of domestic money by the foreign 
exchange and thus, a loss of confidence in this currency which may lead even to a crisis. 
The second reason is to give a picture of how strongly demanded are local currencies in 
the sample economies. This analysis supports the earlier discussion on the relative 
importance of measures based on monetary aggregates. 
The contraction of money demand is approximated here by indicators of 
monetization. Monetization of an economy is defined as a ratio of a measure of money to 
an annualized value of GDP in current prices [after Jarociñski, 1998]. A decrease in 
monetization means that holding money becomes more costly. 
There are also other factors that may influence the monetization in our sample. One 
example being inflation, which may have an additional negative impact. 
Table 3. Broad Money Monetization in the Crisis Countries, 1992–1998 
1992 1993 1994 1995 1996 1997 1998 
Argentina 11.2% 16.3% 19.4% 18.8% 21.1% 24.0% 27.5% 
Brazil 20.9% 22.9% 25.1% 26.3% 25.7% 26.4% 29.9% 
Bulgaria 61.9% 55.7% 42.8% 23.7% 26.7% 
Czech Rep. 61.1% 62.3% 68.7% 70.9% 65.6% 63.9% 
Georgia 5.8% 6.6% 7.6% 
Indonesia 38.3% 38.7% 40.4% 42.3% 46.1% 49.4% 53.4% 
Korea 35.7% 37.3% 36.8% 36.6% 38.4% 42.1% 50.7% 
Kyrgyz Rep. 12.8% 11.9% 13.8% 
Malaysia 67.3% 73.7% 78.6% 77.8% 83.1% 88.5% 93.2% 
Mexico 22.7% 24.6% 25.7% 25.1% 23.7% 25.1% 24.6% 
Moldova 10.4% 11.4% 14.5% 17.6% 18.9% 
Russia 14.6% 16.4% 17.8% 
Thailand 69.5% 71.8% 71.0% 72.2% 75.4% 85.9% 99.0% 
Ukraine 13.1% 12.1% 9.6% 9.4% 11.8% 13.1% 
Source: Own calculations based of IFS data.
17 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ... 
First, it should be noted that Georgia, the Kyrgyz Republic, and Ukraine have been 
monetized on such a small scale that it is doubtful that monetary measures can capture 
the symptoms of a currency crisis there. Very low monetization also characterises Russia 
and Moldova. They rather indicate overall low confidence in the banking system and 
government policies. And indeed, we can see from Table 3 that broad money 
monetization did not fell, and even increased for Georgia, the Kyrgyz Republic, Ukraine, 
and Russia in 1998. 
There was a visible fall in demand for money in Mexico in 1994, in Argentina in 1995, 
and in the Czech Republic in 1997. The indicators show that monetization was depressed 
during the two years following crises in Mexico and in the Czech Republic. 
However, there were no signs of a decrease in the demand for money in any of the 
East Asian economies. This result may either indicate that the nature of the East Asian 
crisis was different or that the broad money aggregate is not a good measure for changes 
in the money demand [3]. 
6. Real interest Rate Differentials 
A central bank may also try to defend a currency when it comes to a pressure by 
raising interest rates. Table 4 shows the real interest rate differentials in our crisis 
countries versus the US deposit rate. High real interest rates were in place in every 
country, for which calculations were available, when the crisis hit. However, their relative 
magnitudes varied. 
The highest interest rates have been present in Brazil around the 1999 crisis, which 
followed a relatively free exchange rate regime at this time. Significant increases at the 
time of the crisis were in place in Argentina, Russia, Thailand, and Ukraine. 
7. Conclusions 
The gradual shrinkage of reserves, taking place in the months preceding currency 
crisis, is probably best captured by an indicator relating its level to the short-term debt. 
[3] This may be also due to the inclusion of foreign currency deposits in the measure of M2. See the 
discussion in the Appendix on this issue. However, data on this type of deposits are not available for Malaysia 
and Indonesia.
18 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak 
Table 4. Real Interest Rate Differentials around Crisis Dates, Monthly 
Argentina Brazil Mexico Moldova Russia Thailand Ukraine 
m-6 2.57 11.32 6.90 14.90 -1.30 2.99 6.32 
m-5 1.94 11.51 7.93 17.89 -1.58 3.06 6.76 
m-4 1.99 23.61 5.84 17.20 -1.11 2.45 7.76 
m-3 2.08 30.63 4.85 17.25 1.51 2.05 10.21 
m-2 2.17 24.87 3.95 17.98 3.68 1.47 11.93 
m-1 3.30 23.03 4.16 15.97 5.66 1.50 11.98 
crisis 11.65 29.84 4.53 23.22 3.96 3.21 12.90 
m+1 11.36 37.97 11.59 26.49 -32.33 1.47 9.12 
m+2 8.40 35.60 12.08 26.73 -35.25 1.15 5.13 
m+3 4.29 26.91 23.68 25.20 -48.19 0.72 -0.01 
m+4 4.07 19.79 23.35 24.61 -62.23 -0.04 -0.69 
m+5 3.31 15.77 8.45 21.18 -75.96 -0.22 -3.18 
m+6 3.86 15.25 -1.44 24.53 -83.80 -1.03 1.89 
Source: Calculations of author's, R. Antczak, W. Paczyñski, and A. Radziwi³³, on the basis of IFS data. 
Note: The interest rates are the real deposit rates compared with the real US deposit rate. 
Although its magnitude is related to the exchange rate arrangement of a given 
economy, there has been observed a downward movement of this measure at a crisis 
date in every analyzed country. Also, the indicator of reserves expressed in terms of 
reserve money describes well the episodes of currency crises in this sample of 
countries. However, its use is limited only to the cases of fixed exchange rate 
arrangements. 
What also seems to properly characterize the pre-crisis situation is the real 
appreciation of domestic currencies. Real effective exchange rates of the analyzed 
economies have been appreciating through several months prior to a crisis. Then, the 
crisis was marked by their sharp decline. 
The currency crises in our sample rather did not manifest themselves by the fall in the 
demand for money. This measure is probably of little use in the case of very low 
monetization countries. What more, any decrease in the broad money monetization has 
not been observed during East Asian crisis. 
High domestic interest rates have been present in every of the analyzed countries at 
times when their currencies came under a pressure. There were also significant increases 
when a crisis hit, or shortly before, in nearly every of them, indicating the attempts of the 
central banks to defend the currency.
If we were to find the symptoms of a currency crisis that have been most universal 
throughout the emerging economies, we would have thus pointed on loss of international 
reserves or serious nominal depreciation, coupled with a period of high real interest 
rates, and preceded by the appreciation of real effective exchange rate. This finding 
confirms the adequacy of Eichengreen, Rose, and Wyplosz (1994) definition of a currency 
crisis in analyzing the developments in the "emerging" or "transitional" economies. 
Finally, it should be noted that the episodes of currency crises have been sometimes 
difficult to identify using the standard measures in the case of the Kyrgyz Republic, and to 
some extent, also for Ukraine and Moldova. This may either indicate the different nature 
of these crises or simply the data problems. 
19 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ...
References 
Antczak R. (2000). "Theoretical Aspects of Currency Crises". CASE Studies and 
Analyses Vol. 207. 
Aziz A., F. Caramazza, R. Salgado (2000). "Currency Crisis: In Search of Common 
Elements". IMF Working Paper No. 00/67, (March). 
Balino T., A. Ubide (1999). "The Korean Financial Crisis of 1997 – A Strategy of 
Financial Sector Reform". IMF Working Paper No. 99/28, (March). 
Berg A. (1999). "The Asia Crisis: Causes, Policy Responses, and Outcomes". IMF 
Working Paper No. 99/138, (October). 
Chang R., A. Velasco (1999). "Liquidity Crises in Emerging Markets: Theory and 
Policy". NBER Working Paper No. W7272, (July). 
Choueiri N., G. Kaminsky (1999). "Has the Nature of Crisis Changed? A Quarter of 
Currency Crises in Argentina". IMF Working Paper No. 99/152, (November). 
Eichengreen B., A. Rose, Ch. Wyplosz (1994). "peculative Attacks on Pegged 
Exchange Rates: An Empirical Exploration with Special Reference to the European 
Monetary System". NBER Working Paper No. W4898. 
Lane T., A. Ghosh, J. Haman, S. Philips, M. Schulze-Ghattas, T. Tsikata (1999). "IMF 
Supported Programs in Indonesia, Korea and Thailand. A Preliminary Assesment". IMF: 
Washington. 
Horvath J. (1999). "The May 1997 Currency Crisis in the Czech Republic. Post- 
Communist Economies", Vol. 11, No. 3. 
IMF (2000). "Georgia: Recent Economic Developments and Selected Issues". Staff 
Country Report, (April). 
IMF (2000). "Debt- and Reserve Related Indicators of External Vulnerability". IMF: 
Washington, (May). 
IMF (1999). "Bulgaria: Recent Economic Developments and Statistical Appendix". 
Staff Country Report No. 99/26, (April). 
IMF (1998). "Czech Republic: Recent Economic Developments and Statistical 
Appendix". Staff Country Report No. 98/37, (April). 
Jarocinski M. (1998). "Money Demand and Monetization in Transition Economies". 
CASE-CEU Working Papers Series Vol. 13. 
Kalter E., A. Ribas (1999). "The 1994 Mexican Economic Crisis: The Role of 
Government Expenditure and Relative Prices". IMF Working Paper No. 99/160, 
(December). 
20 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
21 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ... 
Kovatchevska P. (2000). "The Banking and Currency Crises in Bulgaria: 1996–1997". 
CASE Studies and Analyses Vol. 204. 
Radziwi³³ A., O. Scerbatchi, C. Zaman (1999). "Financial Crisis in Moldova – Causes 
and Consequences". CASE Studies and Analyses Vol. 192. 
Ramos A. (1998). "Capital Structures and Portfolio Composition During Banking 
Crisis: Lessons from Argentina 1995". IMF Working Paper No. 98/121, (August). 
Roubini N., P. Wachtel (1998). "Current Account Sustainability in Transition 
Economies". NBER Working Paper No. 6468, (March).
Data sources 
The calculations presented in this paper are primarily drawn on the International 
Financial Statistics of the Monetary Fund, unless otherwise stated in the text. 
In addition to the IFS numbers, data on foreign currency deposits of the banking 
systems come from: 
– Banco de Mexico at http://www.banxico.org.mx 
– Bank of Korea at http://www.bok.or.kr 
– Bank of Thailand at http://www.bot.org.th 
– Bulgarian National Bank at http://www.bnb.bg 
– Georgian Economic Trends No. 4, 1999 at http://www.geplac.org 
– Moldovan Economic Trends at http://www.moldova.md/economy/Tacis/met.htm 
– Alberto Ramos from the IMF 
22 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
Appendix: What Was Happening with Hard Currency Deposits? 
Some authors suggest that the decrease in monetary aggregates has not to be always 
observed. This is because the aggregates include hard currency denominated deposits 
[Berg, 1999]. Since some of the measures analyzed in this paper might have been 
influenced by this fact, the time path of foreign currency deposits is shown and analyzed 
here. This analysis is heavily constrained by the availability of data. The author could not 
find numbers on foreign currency deposits for Brazil, Indonesia, Malaysia, and the Kyrgyz 
Republic. 
In order to filter the impact of exchange rate changes, foreign currency deposits – 
expressed in national currencies in the balance sheet of deposit money banks – have been 
converted to US dollars using the end-period exchange rate. 
Table 5 presents month-on-month changes in the relative magnitudes of foreign 
currency deposits. We can see that these deposits dropped in almost every country at the 
crisis time. The only exception being the Czech Republic, where there has not been a 
deviation from the trend in the value of foreign currency deposits. Also in Thailand, 
despite the significant fall one month before the crisis, the general trend has been 
upward. But generally, the results support the opinion that when analyzing broad money 
aggregates, foreign currency deposits should be subtracted. 
23 
Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ...
24 
Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak 
Table 5. Monthly Changes in Foreign Currency Deposits around the Crisis Dates 
Argentina Bulgaria Czech Rep. Georgia Korea Mexico Moldova Russia Thailand Ukraine 
crisis date 1995M3 1997M2 1997M5 1998M12 1997M12 1994M12 1998M11 1998M8 1997M7 1998M9 
m-12 1.55% -13.14% 3.48% -1.62% -6.71% -1.10% -0.32% 0.47% -3.64% 1.07% 
m-11 2.00% 0.65% 0.51% 8.65% 86.24% 5.67% -2.34% 5.23% -11.03% -7.47% 
m-10 0.18% -2.59% -4.47% 2.44% 47.04% -7.21% -0.74% 6.21% -18.69% -1.42% 
m-9 1.88% -15.90% 0.74% 1.24% -4.25% 7.15% 6.12% 1.39% 26.56% 1.43% 
m-8 2.66% -6.01% 2.35% 5.20% -20.74% 38.56% 2.98% 2.57% -9.97% -0.05% 
m-7 1.77% -0.51% 1.36% 6.59% -25.26% -2.39% 7.52% -15.70% 17.47% 9.59% 
m-6 1.81% 3.82% -3.95% 3.42% -24.07% 3.63% 11.02% 5.87% 24.70% -4.10% 
m-5 1.25% -8.57% 1.62% -1.63% 41.47% 4.57% 4.50% 3.15% -4.85% 3.73% 
m-4 2.40% -5.74% 4.92% 2.04% 20.55% 14.65% -4.19% -0.25% -7.55% 7.75% 
m-3 3.08% -6.10% -2.71% -7.91% 13.33% 1.96% 6.20% 2.94% 73.27% -6.99% 
m-2 2.49% -2.11% 37.99% -4.37% 22.92% -5.09% 7.20% -1.95% -4.54% 8.02% 
m-1 -2.42% -2.18% 3.07% -13.93% 12.48% 6.25% 1.49% 1.97% -10.48% 4.59% 
Crisis -10.62% -3.49% -7.92% 0.25% -31.42% 19.86% -15.42% -7.24% 18.25% -11.08% 
m+1 -5.46% 3.64% 7.41% 4.63% 33.03% -25.79% -3.96% -14.08% 15.36% -3.46% 
m+2 0.81% 1.19% 1.37% 6.86% 18.55% -20.40% -3.28% -9.46% 34.91% 0.02% 
m+3 3.64% 3.56% 3.80% 1.33% 18.03% -10.37% 0.66% -2.16% -9.82% 1.74% 
m+4 2.02% 2.15% -3.62% 3.36% 17.85% -3.03% 2.74% 2.61% -10.95% -0.62% 
m+5 2.80% 1.56% 7.00% 4.14% 25.65% 3.56% 0.43% -2.21% -1.68% -0.68% 
m+6 2.43% 3.44% -4.45% 9.67% -5.78% -0.03% 1.43% -0.28% 6.38% -0.22% 
m+7 3.73% 1.53% 0.77% -0.73% 25.39% 3.86% 32.46% -1.36% -2.90% 2.32% 
m+8 2.62% 4.52% 0.69% 4.02% -0.14% -10.20% -5.81% 4.06% 4.33% 2.65% 
m+9 -1.65% -0.93% 1.00% 1.50% 3.92% 4.08% -0.37% -0.91% -5.52% 5.31% 
m+10 4.48% -10.24% 4.80% -4.38% 2.32% 8.62% 6.93% 5.26% -6.57% -1.67% 
m+11 1.87% 7.49% 2.70% 1.93% 1.04% -11.47% 2.90% -4.19% 13.61% 3.13% 
m+12 2.29% -1.35% 10.71% 0.69% -25.17% 13.95% -1.09% 4.20% 30.74% 1.07% 
Source: Own calculations on the basis of IMF and central banks data (see Data Sources section).

CASE Network Studies and Analyses 218 - Indicators of Currency Crisis: Empirical Analysis of some Emerging and Transition Economies

  • 1.
    2 1 8 Ma³gorzata Jakubiak Indicators of Currency Crisis: Empirical Analysis of Some Emerging and Transition Economies W a r s a w , 2 0 0 0
  • 2.
    Materials published herehave a working paper character. They can be subject to further publication. The views and opinions expressed here reflect Author’s point of view and not necessarily those of CASE. This paper was prepared for the research project no. 0144/H02/99/17 entitled "Analiza przyczyn i przebiegu kryzysów walutowych w krajach Azji, Ameryki £aciñskiej i Europy OErodkowo-Wschodniej: wnioski dla Polski i innych krajów transformuj¹cych siê" (Analysis of Currency Crises in Countries of Asia, Latin America and Central-Eastern Europe: Lessons for Poland and Other Transition Countries" financed by the State Committee for Scientific Research (KBN) in the years 1999–2001. © CASE – Center for Social and Economic Research, Warsaw 2000 Graphic Design: Agnieszka Natalia Bury DTP: CeDeWu – Centrum Doradztwa i Wydawnictw “Multi-Press” sp. z o.o. ISSN 1506-1701, ISBN 83-7179-239-X Publisher: CASE – Center for Social and Economic Research ul. Sienkiewicza 12, 00-944 Warsaw, Poland tel.: (4822) 622 66 27, 828 61 33, fax (4822) 828 60 69 e-mail: [email protected] www.case.com.pl
  • 3.
    Contents Abstract 5 1. Introduction 6 2. Definition and Types of Financial Crises 6 3. Indicators of External Vulnerability to a Financial Crisis 7 4. Loss of Reserves and Nominal Depreciation 14 5. Fall in Demand for Money 16 6. Real Interest Rate Differentials 17 7. Conclusions 17 References 20 Data Sources 22 Appendix: What Was Happening with Hard Currency Deposits? 23
  • 4.
    Ma³gorzata Jakubiak JuniorResearcher at the CASE Foundation The author holds MA in International Economics from the University of Sussex and MA in Economics from the University of Warsaw. Since 1997 junior researcher at the Center for Social and Economic Research – CASE. Her research interests focus on issues related to transition, particularly international trade and some aspects of open economy macroeconomics. 4 Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
  • 5.
    Abstract This paperfocuses on the measurement of a contemporaneous currency crisis. The analysis covers 14 "emerging" or "transforming" economies that experienced episodes of currency crises over the last decade. It adds to well-known examples relatively little-known evidence on the crisis depth in some of the CIS countries. Following the Eichengreen, Rose, and Wyplosz (1994) definition of a currency crisis, the emphasis is primarily put on the examination of changes in relative reserves, exchange rates, and real interest rates during periods of exchange rate pressure. Other measures of the depth of a currency crisis as well as measures of external vulnerability are also discussed. The findings support the adequacy of the Eichengreen, Rose, and Wyplosz (1994) definition in analyzing crisis developments in emerging economies. 5 Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ...
  • 6.
    1. Introduction Theaim of this paper is to provide a comprehensive definition of a contemporaneous currency crisis and to illustrate this definition by examples of currency crises of the 1990s. The discussion follows a text on theoretical aspects of currency crises [Antczak, 2000], where the occurrence of such crisis is described [after Eichengreen et al., 1994] as a change in either a country's exchange rate, its level of foreign reserves, or its interest rates. Thus, in the following parts, there is an illustration of what was happening with these – and some other – macroeconomic variables during the times of most recent currency crises. In order to give some background, the research starts from description of pre-crisis developments that show external vulnerability of countries in question. The analysis is restricted to so called "emerging" or "transforming" economies. And adds to the well-known examples relatively little known evidence on the crisis depth in some of the CIS countries. The paper concludes with the assessment of the adequacy of proposed definition in the measurement of recent crises. 2. Definition and Types of Financial Crises Financial crises are usually grouped into the three broad categories: currency crises, banking crises, and foreign debt crises [Aziz et. al, 2000]. A currency crisis occurs when a speculative attack on a currency results in a sharp devaluation (or depreciation) of the exchange rate, or when authorities try to defend the currency using its foreign reserves or sharply raising interest rates [Eichengreen et. al, 1994]. A banking crisis usually demonstrates itself in bank runs or failures which "induce banks to suspend the internal convertibility of their liabilities or which compel the government to intervene to prevent this by extending assistance on a large scale" [Aziz et. al, 2000: 5]. The causes of banking crisis frequently lie in a prolonged deterioration of banks' assets quality. When a country cannot service its foreign debt, we speak about the debt crisis. However, there are many cases, where elements of all or of any two of the described types of financial crises may take place simultaneously. Moreover, one type of crisis may develop itself into another. This is to say that often the symptoms of a currency crisis may be also linked with other financial problems in the economy, and it is sometimes hard to 6 Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
  • 7.
    isolate the "pure"currency case. There are examples of both simultaneous symptoms of banking, currency, and debt crisis (East Asia, Mexico), as well as banking crisis preceding currency crisis (Bulgaria) in the countries included in the sample. This paper concentrates on the measures of a currency crisis. Following Eichengreen, Rose, and Wyplosz (1994), the attention is primarily put on the examination of changes in relative reserves, exchange rates, and real interest rates during periods of exchange rate pressures. Because one of the aims of this study is to describe the currency crises, some other symptoms of the loss of confidence in domestic money are also included. These are: shrinking money demand and sudden real exchange rate depreciation. Since the measurement and dating of currency crises pose some difficulties, episodes of significant currency pressures were identified ex ante, based on existing information in the economic literature on the subject. Only then statistical tools were applied to describe their characteristics. The analysis covers 14 emerging economies that experienced episodes of currency crises over the last decade. These are: Argentina (1995 crisis), Brazil (1999), Bulgaria (1997), the Czech Republic (1997), Georgia (1998), Indonesia (1997), Korea (1997), the Kyrgyz Republic (1998), Malaysia (1997), Mexico (1994), Moldova (1998), Russian Federation (1998), Thailand (1997), and Ukraine (1998) [1]. Due to the lack of data on individual time series, some of these countries had to be excluded from discussion on particular indicators. The rest of the paper is organized as follows: reserve-based indicators of external vulnerability plus real exchange rate developments are discussed first, followed by the fall in reserves and nominal depreciation at a crisis date, then by the sudden fall in demand for money, and interest rates differentials. Assessment of the adequacy of proposed definition of the measurement of recent currency crises is given in conclusions. 3. Indicators of External Vulnerability to a Financial Crisis Warning signals of financial distress had been present in the majority of sample economies months before the currency crisis hit. This part shows how financially fragile these economies have been by comparing pre-crisis reserve-based indicators of external vulnerability and real exchange rate developments. 7 Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ... [1] More precise timing of each crisis is given in Table 2.
  • 8.
    3.1. Reserves inMonths of Imports The traditionally used measure in assessing the reserve adequacy is external reserves in months of imports of goods and services. It is a useful indicator of reserve needs for countries with limited access to capital markets. However, since there is no reference to capital account, it is claimed that there is a weak relation between reserves over imports and the occurrence or depth of crises in the more recent periods of financial turmoil [IMF, 2000]. It is commonly agreed that three months is the minimum period during which a country can continue to support its current level of imports if all other inflows and outflows cease. As it can be seen from Table 1, this condition has never been met by Ukraine, Russia, Georgia, the Kyrgyz Republic, and Mexico. On the contrary, East Asian countries and Brazil recorded relatively safe reserves to imports ratio in 1997 and in 1998. Foreign reserves held by Argentina in 1995 fell when compared to previous years, but were still sufficient to support, on average, more than 4 months of imports. The low ratio of reserves in terms of imports does not seem to describe well crisis economies included in the sample, therefore there is a need to examine other measures of reserve adequacy. 3.2. Reserves over Short-term External Debt Measure that compares net reserves to short-term external debt captures well risks associated with adverse developments in international capital markets. It shows how quickly a country would be forced to adjust if it were cut off from external borrowing [IMF, 2000]. It is claimed that this is the most important indicator of reserve adequacy in countries with significant but uncertain access to capital markets. A smaller ratio suggests greater incidence and depth of crisis [IMF, 2000]. IMF suggests that reserves should at least exceed official and officially guaranteed short-term debt [IMF, 2000: 15]. The most recommended period for judging the reserves to short-term debt ratio is the month prior to the crisis date, that is before a crisis took full effect and impacted reserve levels. 8 Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
  • 9.
    9 Studies &Analyses CASE No. 218 – Indicators of Currency Crisis ... Table 1. Reserves in Months of Imports 1992 1993 1994 1995 1996 1997 1998 Argentina 4.289 4.917 6.181 4.280 4.722 5.989 7.044 Brazil 5.701 5.884 6.976 6.905 8.219 8.612 8.813 Bulgaria 1.796 3.175 1.488 3.421 6.085 Czech Republic 1.247 2.013 3.531 4.663 3.778 3.943 Georgia 2.280 1.869 1.812 Indonesia 3.311 2.966 2.438 2.563 3.071 5.569 5.453 Korea 1.935 1.979 1.711 2.019 2.418 3.131 4.182 Kyrgyz Republic 1.165 0.413 0.873 1.365 1.473 2.029 Malaysia 3.375 3.411 4.351 3.304 3.273 4.355 3.720 Mexico 2.926 2.989 2.775 1.437 1.707 2.139 2.642 Russian Fed. 1.083 0.761 1.223 1.649 2.806 1.823 Thailand 4.461 4.421 4.053 4.782 6.774 7.989 6.856 Ukraine 0.657 0.180 0.101 0.708 0.635 1.867 1.304 Source: Own calculations on the basis of data from IFS, Bulgarian National Bank, Georgian Economic Trends No. 1/2000, and Ukrainian Statistical Bulletin. Notes: Average level of total reserves minus gold and imports over the next 12 months is used. Actual data on imports are included only in the ratios for 1998.
  • 10.
    3.5 3.0 2.5 2.0 1.5 1.0 0.5 If we were to characterize the pre-crisis vulnerability by the reserves to short-term debt ratio, Mexico, Korea, Indonesia, Russia, Bulgaria, and Thailand would be among most severely affected, with international reserves well below their short-term debt obligations. Argentina also recorded a very low level of reserves to short-term external debt ratio, but no earlier than at the crisis date. Although the ratio declines for Malaysia and Brazil the closer we move to the crisis date, with its value above 1.5 it still does not indicate any danger of a currency crisis. High values for Ukraine (above 4) and – probably – Moldova reflect improper classification of reserves. 3.3. Reserves to Reserve Money The vulnerability of an economy to a financial turbulence can be also captured by the developments in the ratio of reserves to a measure of money. The problem, however, appears when deciding which monetary aggregate should be used. Traditionally, it is the ratio of reserves to broad money. Yet, this poses difficulties, as it is hard to interpret when the demand for money is generally low. Another puzzle is connected with the inclusion 10 Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak Figure 1. Reserves over Short-term Debt 0.0 month t-3 month t-2 month t-1 crisis Ukraine Malaysia Brazil Thailand Argentina Indonesia Russian Federation Bulgaria Korea Republic Mexico Source: Own calculations on the basis of IFS, Global Development Finance, and World Development Indicators databases. Notes: The stock of reserves is taken from the months prior to the crisis dates, and at the crisis dates. Crisis dates are listed in Table1. Short-term external debt is the end-year value reported in GDF.
  • 11.
    of hard currencydeposits in the broad money aggregates. It is then hard to differencible between a change in the demand for domestic currency and a demand for foreign currency. The analysis of evolution of hard currency deposits held in commercial banks during the crises (see the Appendix) shows the validity of this last doubt. The section on money demand further confirms the inappropriateness of looking at the broad money aggregates in the case of low-monetization countries of our sample. Therefore, in assessing the financial fragility of an economy, author concentrates here on the ratio of gross reserves to reserve money (the latter otherwise known as monetary base). This measure has obvious advantages, that makes its use the most suitable here. First of all, it shows well by how much the reserve money are backed by the official reserves. And since, among all the monetary aggregates, it is the reserve money, which is the most affected by changes in the exchange rate, it seems appropriate to examine it here. Again, as with all the reserve-based indicators, its importance is especially high when judging the reserve adequacy under fixed exchange regimes, which credibility needs to be established [IMF, 2000:1]. The rationale behind this measure is that an unstable demand for high-powered money suggests greater probability of a capital flight. Problems with the liquidity within the monetary system characterize well pre-crisis months in Argentina, Brazil, Bulgaria, Russia, Ukraine, Georgia, the Kyrgyz Republic, and to some extent in Mexico (see Chart 2 and 3). East Asian economies recorded relatively safe values of this measure in the months prior to the Asian crisis, but nevertheless – substantially lower during the last months preceding the crisis – than at other times. A ratio of reserves to reserve money falling below one indicates potential difficulties with the commitment to a nominal anchor in all of these countries. This indicator does not have any importance when referring to the case of Malaysia which kept floating exchange rate regime around the crisis time. As it has already been noted, relative importance of indicators based on monetary aggregates for the countries in our sample is discussed in the sections that follow. These analyses show that the meaning of monetary measures is especially weak in Ukraine. Low monetization coupled with a very little change in hard currency deposits during the 1998 crisis show overall low confidence in the domestic currency and in the banking system. 3.4. Real Exchange Rate Developments Real appreciation of a currency may reflect a loss of international competitiveness, and increasing expectations of an exchange rate adjustment as the appreciation is 11 Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ...
  • 12.
    12 Studies &Analyses CASE No. 218 – Ma³gorzata Jakubiak Figure 2. Reserves over Reserve Money 2.5 2.0 1.5 1.0 0.5 0 m-12 m-9 m-6 m-3 crisis m+3 m+6 m+9 m+12 Argentina Brazil Bulgaria Czech Republic Georgia Source: Own calculations based on IFS IMF. Figure 3. Reserves over Reserve Money 4 3. 5 3 2. 5 2 1. 5 1 0. 5 0 m-12 m-9 m-6 m-3 crisis m+3 m+6 m+9 m+12 Korea Kyrgyz Republic Malaysia Mexico Moldova Russia Thailand Ukraine Source: Own calculations based on IFS IMF.
  • 13.
    13 Studies &Analyses CASE No. 218 – Indicators of Currency Crisis ... expected to worsen the current account. If the real exchange rate appreciation leads to a misaligned currency value, the current account deficit may be less sustainable in such situation. Then the large current account deficit coupled with the perception that a currency is overvalued may lead to a balance of payments type of crisis. However, not every real appreciation creates current account sustainability problems (Balassa- Samuelson effect, return to its long-run value after an initial overshooting). We can see from Figure 4, that real effective exchange rates have been indeed appreciating through several months prior to the crises in Russia, Malaysia, the Czech Republic, and to some extent in Moldova. The same has been true for Bulgaria but when we consider the 1996 banking crisis, which preceded currency crash. The real effective exchange rate has not been appreciating in Ukraine during at least six months prior to the crisis. Data from the International Financial Statistics of the IMF were used to describe the evolution of real effective exchange rates. These data are available only for some of the countries in the sample. Therefore, CPI based real exchange rates versus the US dollar are used to show these developments in other economies (see Figure 5). The results of real appreciation is not very much visible, partly because some of the countries maintained peg to the dollar. Figure 4. Real Effective Exchange Rates 150 140 130 120 110 100 90 80 70 60 m-24 m-18 m-12 m-6 crisis m+6 m+12 m+18 m+24 Czech Republic Malaysia Moldova Russia Ukraine Bulgaria Source: IFS IMF.
  • 14.
    120 100 80 60 40 Beginning of a currency crisis is marked by the large real exchange rate depreciation in every economy. Next part of the paper describes changes that took place precisely at the crisis time. 4. Loss of Reserves and Nominal Depreciation International reserves held by monetary authorities are available for financing external payments imbalances, thus helping to maintain liquidity, allow to absorb shocks, and provide confidence in the authorities commitment to support the value of domestic currency. Since it is very costly for a country to run short of liquidity, maintaining a sufficient level of external assets is important in preventing currency crises. When there is a sudden change in the direction of capital flows and capital starts flowing out of a country, this outflow can be accommodated through a reserve decline, without any change in the central bank interest or exchange rates. However, if monetary authorities decide to devalue the currency or alter the level of interest rates, most of such a shock can be absorbed through these changes [Berg, 1999]. 14 Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak Figure 5. Real Exchange Rates, CPI Based 20 m-24 m-18 m-12 m-6 crisis m+6 m+12 m+18 m+24 Brazil Indonesia Korea Mexico Thailand Source: Own calculations based on IFS IMF.
  • 15.
    Table 2 providesdata on reserve losses in 14 economies that suffered from a currency crisis in the 1990s. There were four economies – Malaysia, Indonesia, Bulgaria, and Kyrgyz Republic – whose reserve assets fell by less than 20% at the time of a crisis. Malaysia and Bulgaria were the only countries in the sample that kept floating exchange rate regimes when financial crisis occurred, and lost "only" less than 20% of its external reserves. However, Malaysian reserves deteriorated again during the next year and started to rebuild at the end of 1998. Bulgaria experienced a banking crisis in 1996, during which the central bank has already severely depleted its exchange reserves. The monetary authorities of Indonesia decided to float the rupiah in August 1997, following intensified pressure on the currency since the Thai baht was floated in July. The external reserves fell then only by $1.1 billion (5.2% from June 1997), but they continued to fall, and the lowest level was recorded in February 1998. By then, international reserves of Indonesia fell by 24% (4.8 $ billion) when compared to the pre-crisis period. At the other end of the spectrum, there are countries affected by the Tequila crisis of 1994–1995, Russia, Ukraine, who lost over 40% of their external reserves in 1998, and also Brazil. Russian central bank lost over 40% of its external reserves in just one month 15 Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ... Table 2. The Severity of the Currency Crises Measured by Reserve Losses Country Crisis date Loss of reserves Reserves/M2 at a crisis date in percent [2] Nominal depreciation against USD at a crisis date Mexico Dec 1994 8.2% 64.5% 54.6% Argentina Mar 1995 18.3% 41% 0% Bulgaria Feb 1997 25.8% 16.8% 100.98% Czech Republic May 1997 29.6% 23.0% 5.44% Thailand Jul 1997 23.3% 23% 24.34% Malaysia Jul 1997 23.2% 18.4% 4.19% Indonesia Aug 1997 18.3% 5.2% 16.78% Korea Dec 1997 17.0% 33.2% 45.64% Russian Fed. Aug 1998 14.9% 40.6% 26.72% Ukraine Sep 1998 25.2% 58.1% 51.11% Moldova Nov 1998 111.2% 35% 55.41% Kyrgyz Republic Nov 1998 87.96% 18.71% 19.40% Georgia Dec 1998 59.9% 24.5% 16.8% Brazil Jan 1999 24.2% 53.5% 64.08% Source: Own calculations based of IFS data. [2] Monetary authorities' reserve loss is calculated from the month the stock of these reserves peaks until the crisis date [after Choueiri and Kaminsky, 1999].
  • 16.
    16 Studies &Analyses CASE No. 218 – Ma³gorzata Jakubiak trying to defend the exchange rate band. At the end of 1998, foreign reserves of the central bank of Moldova fell to the 1994 levels. 5. Fall in Demand for Money Demand for money is analyzed here for two reasons. First of all, a sudden fall in the demand for a currency indicates the substitution of domestic money by the foreign exchange and thus, a loss of confidence in this currency which may lead even to a crisis. The second reason is to give a picture of how strongly demanded are local currencies in the sample economies. This analysis supports the earlier discussion on the relative importance of measures based on monetary aggregates. The contraction of money demand is approximated here by indicators of monetization. Monetization of an economy is defined as a ratio of a measure of money to an annualized value of GDP in current prices [after Jarociñski, 1998]. A decrease in monetization means that holding money becomes more costly. There are also other factors that may influence the monetization in our sample. One example being inflation, which may have an additional negative impact. Table 3. Broad Money Monetization in the Crisis Countries, 1992–1998 1992 1993 1994 1995 1996 1997 1998 Argentina 11.2% 16.3% 19.4% 18.8% 21.1% 24.0% 27.5% Brazil 20.9% 22.9% 25.1% 26.3% 25.7% 26.4% 29.9% Bulgaria 61.9% 55.7% 42.8% 23.7% 26.7% Czech Rep. 61.1% 62.3% 68.7% 70.9% 65.6% 63.9% Georgia 5.8% 6.6% 7.6% Indonesia 38.3% 38.7% 40.4% 42.3% 46.1% 49.4% 53.4% Korea 35.7% 37.3% 36.8% 36.6% 38.4% 42.1% 50.7% Kyrgyz Rep. 12.8% 11.9% 13.8% Malaysia 67.3% 73.7% 78.6% 77.8% 83.1% 88.5% 93.2% Mexico 22.7% 24.6% 25.7% 25.1% 23.7% 25.1% 24.6% Moldova 10.4% 11.4% 14.5% 17.6% 18.9% Russia 14.6% 16.4% 17.8% Thailand 69.5% 71.8% 71.0% 72.2% 75.4% 85.9% 99.0% Ukraine 13.1% 12.1% 9.6% 9.4% 11.8% 13.1% Source: Own calculations based of IFS data.
  • 17.
    17 Studies &Analyses CASE No. 218 – Indicators of Currency Crisis ... First, it should be noted that Georgia, the Kyrgyz Republic, and Ukraine have been monetized on such a small scale that it is doubtful that monetary measures can capture the symptoms of a currency crisis there. Very low monetization also characterises Russia and Moldova. They rather indicate overall low confidence in the banking system and government policies. And indeed, we can see from Table 3 that broad money monetization did not fell, and even increased for Georgia, the Kyrgyz Republic, Ukraine, and Russia in 1998. There was a visible fall in demand for money in Mexico in 1994, in Argentina in 1995, and in the Czech Republic in 1997. The indicators show that monetization was depressed during the two years following crises in Mexico and in the Czech Republic. However, there were no signs of a decrease in the demand for money in any of the East Asian economies. This result may either indicate that the nature of the East Asian crisis was different or that the broad money aggregate is not a good measure for changes in the money demand [3]. 6. Real interest Rate Differentials A central bank may also try to defend a currency when it comes to a pressure by raising interest rates. Table 4 shows the real interest rate differentials in our crisis countries versus the US deposit rate. High real interest rates were in place in every country, for which calculations were available, when the crisis hit. However, their relative magnitudes varied. The highest interest rates have been present in Brazil around the 1999 crisis, which followed a relatively free exchange rate regime at this time. Significant increases at the time of the crisis were in place in Argentina, Russia, Thailand, and Ukraine. 7. Conclusions The gradual shrinkage of reserves, taking place in the months preceding currency crisis, is probably best captured by an indicator relating its level to the short-term debt. [3] This may be also due to the inclusion of foreign currency deposits in the measure of M2. See the discussion in the Appendix on this issue. However, data on this type of deposits are not available for Malaysia and Indonesia.
  • 18.
    18 Studies &Analyses CASE No. 218 – Ma³gorzata Jakubiak Table 4. Real Interest Rate Differentials around Crisis Dates, Monthly Argentina Brazil Mexico Moldova Russia Thailand Ukraine m-6 2.57 11.32 6.90 14.90 -1.30 2.99 6.32 m-5 1.94 11.51 7.93 17.89 -1.58 3.06 6.76 m-4 1.99 23.61 5.84 17.20 -1.11 2.45 7.76 m-3 2.08 30.63 4.85 17.25 1.51 2.05 10.21 m-2 2.17 24.87 3.95 17.98 3.68 1.47 11.93 m-1 3.30 23.03 4.16 15.97 5.66 1.50 11.98 crisis 11.65 29.84 4.53 23.22 3.96 3.21 12.90 m+1 11.36 37.97 11.59 26.49 -32.33 1.47 9.12 m+2 8.40 35.60 12.08 26.73 -35.25 1.15 5.13 m+3 4.29 26.91 23.68 25.20 -48.19 0.72 -0.01 m+4 4.07 19.79 23.35 24.61 -62.23 -0.04 -0.69 m+5 3.31 15.77 8.45 21.18 -75.96 -0.22 -3.18 m+6 3.86 15.25 -1.44 24.53 -83.80 -1.03 1.89 Source: Calculations of author's, R. Antczak, W. Paczyñski, and A. Radziwi³³, on the basis of IFS data. Note: The interest rates are the real deposit rates compared with the real US deposit rate. Although its magnitude is related to the exchange rate arrangement of a given economy, there has been observed a downward movement of this measure at a crisis date in every analyzed country. Also, the indicator of reserves expressed in terms of reserve money describes well the episodes of currency crises in this sample of countries. However, its use is limited only to the cases of fixed exchange rate arrangements. What also seems to properly characterize the pre-crisis situation is the real appreciation of domestic currencies. Real effective exchange rates of the analyzed economies have been appreciating through several months prior to a crisis. Then, the crisis was marked by their sharp decline. The currency crises in our sample rather did not manifest themselves by the fall in the demand for money. This measure is probably of little use in the case of very low monetization countries. What more, any decrease in the broad money monetization has not been observed during East Asian crisis. High domestic interest rates have been present in every of the analyzed countries at times when their currencies came under a pressure. There were also significant increases when a crisis hit, or shortly before, in nearly every of them, indicating the attempts of the central banks to defend the currency.
  • 19.
    If we wereto find the symptoms of a currency crisis that have been most universal throughout the emerging economies, we would have thus pointed on loss of international reserves or serious nominal depreciation, coupled with a period of high real interest rates, and preceded by the appreciation of real effective exchange rate. This finding confirms the adequacy of Eichengreen, Rose, and Wyplosz (1994) definition of a currency crisis in analyzing the developments in the "emerging" or "transitional" economies. Finally, it should be noted that the episodes of currency crises have been sometimes difficult to identify using the standard measures in the case of the Kyrgyz Republic, and to some extent, also for Ukraine and Moldova. This may either indicate the different nature of these crises or simply the data problems. 19 Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ...
  • 20.
    References Antczak R.(2000). "Theoretical Aspects of Currency Crises". CASE Studies and Analyses Vol. 207. Aziz A., F. Caramazza, R. Salgado (2000). "Currency Crisis: In Search of Common Elements". IMF Working Paper No. 00/67, (March). Balino T., A. Ubide (1999). "The Korean Financial Crisis of 1997 – A Strategy of Financial Sector Reform". IMF Working Paper No. 99/28, (March). Berg A. (1999). "The Asia Crisis: Causes, Policy Responses, and Outcomes". IMF Working Paper No. 99/138, (October). Chang R., A. Velasco (1999). "Liquidity Crises in Emerging Markets: Theory and Policy". NBER Working Paper No. W7272, (July). Choueiri N., G. Kaminsky (1999). "Has the Nature of Crisis Changed? A Quarter of Currency Crises in Argentina". IMF Working Paper No. 99/152, (November). Eichengreen B., A. Rose, Ch. Wyplosz (1994). "peculative Attacks on Pegged Exchange Rates: An Empirical Exploration with Special Reference to the European Monetary System". NBER Working Paper No. W4898. Lane T., A. Ghosh, J. Haman, S. Philips, M. Schulze-Ghattas, T. Tsikata (1999). "IMF Supported Programs in Indonesia, Korea and Thailand. A Preliminary Assesment". IMF: Washington. Horvath J. (1999). "The May 1997 Currency Crisis in the Czech Republic. Post- Communist Economies", Vol. 11, No. 3. IMF (2000). "Georgia: Recent Economic Developments and Selected Issues". Staff Country Report, (April). IMF (2000). "Debt- and Reserve Related Indicators of External Vulnerability". IMF: Washington, (May). IMF (1999). "Bulgaria: Recent Economic Developments and Statistical Appendix". Staff Country Report No. 99/26, (April). IMF (1998). "Czech Republic: Recent Economic Developments and Statistical Appendix". Staff Country Report No. 98/37, (April). Jarocinski M. (1998). "Money Demand and Monetization in Transition Economies". CASE-CEU Working Papers Series Vol. 13. Kalter E., A. Ribas (1999). "The 1994 Mexican Economic Crisis: The Role of Government Expenditure and Relative Prices". IMF Working Paper No. 99/160, (December). 20 Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
  • 21.
    21 Studies &Analyses CASE No. 218 – Indicators of Currency Crisis ... Kovatchevska P. (2000). "The Banking and Currency Crises in Bulgaria: 1996–1997". CASE Studies and Analyses Vol. 204. Radziwi³³ A., O. Scerbatchi, C. Zaman (1999). "Financial Crisis in Moldova – Causes and Consequences". CASE Studies and Analyses Vol. 192. Ramos A. (1998). "Capital Structures and Portfolio Composition During Banking Crisis: Lessons from Argentina 1995". IMF Working Paper No. 98/121, (August). Roubini N., P. Wachtel (1998). "Current Account Sustainability in Transition Economies". NBER Working Paper No. 6468, (March).
  • 22.
    Data sources Thecalculations presented in this paper are primarily drawn on the International Financial Statistics of the Monetary Fund, unless otherwise stated in the text. In addition to the IFS numbers, data on foreign currency deposits of the banking systems come from: – Banco de Mexico at http://www.banxico.org.mx – Bank of Korea at http://www.bok.or.kr – Bank of Thailand at http://www.bot.org.th – Bulgarian National Bank at http://www.bnb.bg – Georgian Economic Trends No. 4, 1999 at http://www.geplac.org – Moldovan Economic Trends at http://www.moldova.md/economy/Tacis/met.htm – Alberto Ramos from the IMF 22 Studies & Analyses CASE No. 218 – Ma³gorzata Jakubiak
  • 23.
    Appendix: What WasHappening with Hard Currency Deposits? Some authors suggest that the decrease in monetary aggregates has not to be always observed. This is because the aggregates include hard currency denominated deposits [Berg, 1999]. Since some of the measures analyzed in this paper might have been influenced by this fact, the time path of foreign currency deposits is shown and analyzed here. This analysis is heavily constrained by the availability of data. The author could not find numbers on foreign currency deposits for Brazil, Indonesia, Malaysia, and the Kyrgyz Republic. In order to filter the impact of exchange rate changes, foreign currency deposits – expressed in national currencies in the balance sheet of deposit money banks – have been converted to US dollars using the end-period exchange rate. Table 5 presents month-on-month changes in the relative magnitudes of foreign currency deposits. We can see that these deposits dropped in almost every country at the crisis time. The only exception being the Czech Republic, where there has not been a deviation from the trend in the value of foreign currency deposits. Also in Thailand, despite the significant fall one month before the crisis, the general trend has been upward. But generally, the results support the opinion that when analyzing broad money aggregates, foreign currency deposits should be subtracted. 23 Studies & Analyses CASE No. 218 – Indicators of Currency Crisis ...
  • 24.
    24 Studies &Analyses CASE No. 218 – Ma³gorzata Jakubiak Table 5. Monthly Changes in Foreign Currency Deposits around the Crisis Dates Argentina Bulgaria Czech Rep. Georgia Korea Mexico Moldova Russia Thailand Ukraine crisis date 1995M3 1997M2 1997M5 1998M12 1997M12 1994M12 1998M11 1998M8 1997M7 1998M9 m-12 1.55% -13.14% 3.48% -1.62% -6.71% -1.10% -0.32% 0.47% -3.64% 1.07% m-11 2.00% 0.65% 0.51% 8.65% 86.24% 5.67% -2.34% 5.23% -11.03% -7.47% m-10 0.18% -2.59% -4.47% 2.44% 47.04% -7.21% -0.74% 6.21% -18.69% -1.42% m-9 1.88% -15.90% 0.74% 1.24% -4.25% 7.15% 6.12% 1.39% 26.56% 1.43% m-8 2.66% -6.01% 2.35% 5.20% -20.74% 38.56% 2.98% 2.57% -9.97% -0.05% m-7 1.77% -0.51% 1.36% 6.59% -25.26% -2.39% 7.52% -15.70% 17.47% 9.59% m-6 1.81% 3.82% -3.95% 3.42% -24.07% 3.63% 11.02% 5.87% 24.70% -4.10% m-5 1.25% -8.57% 1.62% -1.63% 41.47% 4.57% 4.50% 3.15% -4.85% 3.73% m-4 2.40% -5.74% 4.92% 2.04% 20.55% 14.65% -4.19% -0.25% -7.55% 7.75% m-3 3.08% -6.10% -2.71% -7.91% 13.33% 1.96% 6.20% 2.94% 73.27% -6.99% m-2 2.49% -2.11% 37.99% -4.37% 22.92% -5.09% 7.20% -1.95% -4.54% 8.02% m-1 -2.42% -2.18% 3.07% -13.93% 12.48% 6.25% 1.49% 1.97% -10.48% 4.59% Crisis -10.62% -3.49% -7.92% 0.25% -31.42% 19.86% -15.42% -7.24% 18.25% -11.08% m+1 -5.46% 3.64% 7.41% 4.63% 33.03% -25.79% -3.96% -14.08% 15.36% -3.46% m+2 0.81% 1.19% 1.37% 6.86% 18.55% -20.40% -3.28% -9.46% 34.91% 0.02% m+3 3.64% 3.56% 3.80% 1.33% 18.03% -10.37% 0.66% -2.16% -9.82% 1.74% m+4 2.02% 2.15% -3.62% 3.36% 17.85% -3.03% 2.74% 2.61% -10.95% -0.62% m+5 2.80% 1.56% 7.00% 4.14% 25.65% 3.56% 0.43% -2.21% -1.68% -0.68% m+6 2.43% 3.44% -4.45% 9.67% -5.78% -0.03% 1.43% -0.28% 6.38% -0.22% m+7 3.73% 1.53% 0.77% -0.73% 25.39% 3.86% 32.46% -1.36% -2.90% 2.32% m+8 2.62% 4.52% 0.69% 4.02% -0.14% -10.20% -5.81% 4.06% 4.33% 2.65% m+9 -1.65% -0.93% 1.00% 1.50% 3.92% 4.08% -0.37% -0.91% -5.52% 5.31% m+10 4.48% -10.24% 4.80% -4.38% 2.32% 8.62% 6.93% 5.26% -6.57% -1.67% m+11 1.87% 7.49% 2.70% 1.93% 1.04% -11.47% 2.90% -4.19% 13.61% 3.13% m+12 2.29% -1.35% 10.71% 0.69% -25.17% 13.95% -1.09% 4.20% 30.74% 1.07% Source: Own calculations on the basis of IMF and central banks data (see Data Sources section).