Chapter 19
The Foreign Exchange
Market
© 2005 Pearson Education Canada Inc.
© 2005 Pearson Education
Canada Inc. 19-2
Foreign Exchange Rates
© 2005 Pearson Education
Canada Inc. 19-3
The Foreign Exchange Market
Definitions:
1. Spot exchange rate
2. Forward exchange rate
3. Appreciation
4. Depreciation
Currency appreciates, country’s goods prices ↑ abroad and
foreign goods prices ↓ in that country
1. Makes domestic businesses less competitive
2. Benefits domestic consumers
FX traded in over-the-counter market
1. Trade is in bank deposits denominated in different
currencies
19-4
Law of One Price
Example: Canadian steel $100 per ton, Japanese steel 10,000 yen
per ton
If E = 50 yen/$ then prices are:
Canadian Steel Japanese Steel
In Canada $100 $200
In Japan 5000 yen 10,000 yen
If E = 100 yen/$ then prices are:
Canadian Steel Japanese Steel
In Canada $100 $100
In Japan 10,000 yen 10,000 yen
Law of one price ⇒ E = 100 yen/$
© 2005 Pearson Education Canada Inc.
© 2005 Pearson Education
Canada Inc. 19-5
Purchasing Power Parity (PPP)
PPP ⇒ Domestic price level ↑ 10%, domestic
currency ↓ 10%
1. Application of law of one price to price levels
2. Works in long run, not short run
Problems with PPP
1. All goods not identical in both countries: Toyota vs
Chevy
2. Many goods and services are not traded: e.g. haircuts
© 2005 Pearson Education
Canada Inc. 19-6
PPP: Canada and U.S.
19-7
Factors Affecting E in Long Run
Basic Principle: If factor increases demand for domestic goods
relative to foreign goods, E ↑
© 2005 Pearson Education Canada Inc.
© 2005 Pearson Education
Canada Inc. 19-8
Expected Returns and Interest Parity
Re for
Francois Al
$ Deposits iD + (Ee
t+1 – Et)/Et iD
Euro Deposits iF iF – (Ee
t+1 – Et)/Et
Relative Re iD – iF + (Ee
t+1 – Et)/Et iD – iF + (Ee
t+1 – Et)/Et
Interest Parity Condition:
$ and Euro deposits perfect substitutes
iD = iF – (Ee
t+1 – Et)/Et
Example: if iD = 10% and expected appreciation of $,
(Ee
t+1– Et)/Et, = 5% ⇒ iF
= 15%
© 2005 Pearson Education
Canada Inc. 19-9
Deriving RF
Curve
Assume iF = 10%, Ee
t+1 = 1 euro/$
Point
A: Et = 0.95, RF = .10 – (1 – 0.95)/0.95 = .048 = 4.8%
B: Et = 1.00, RF = .10 – (1 – 1.0)/1.0 = .100 =10.0%
C: Et = 1.05, RF = .10 – (1 – 1.05)/1.05 = .148 = 14.8%
RF curve connects these points and is upward sloping because when
Et is higher, expected appreciation of F higher, RF ↑
Deriving RD Curve
Points B, D, E, RD = 10%: so curve is vertical
Equilibrium
RD = RF at E*
If Et > E*, RF > RD, sell $, Et ↓
If Et < E*, RF < RD, buy $, Et ↑
© 2005 Pearson Education
Canada Inc. 19-10
Deriving RETF
Curve
Assume iF = 10%, Ee
t+1 = 1 euro/$
Point
A: Et = 0.95 RETF = .10 – (1 – 0.95)/0.95 = .048 = 4.8%
B: Et = 1.00 RETF = .10 – (1 – 1.0)/1.0 = .100 =10.0%
C: Et = 1.05 RETF = .10 – (1 – 1.05)/1.05 = .148 = 14.8%
RETF curve connects these points and is upward sloping because when Et is
higher, expected appreciation of F higher, RETF ↑
Deriving RETD Curve
Points B, D, E, RETD = 10%: so curve is vertical
Equilibrium
RETD = RETF at E*
If Et > E*, RETF > RETD, sell $, Et ↓
If Et < E*, RETF < RETD, buy $, Et ↑
© 2005 Pearson Education
Canada Inc. 19-11
Equilibrium in the Foreign Exchange Market
19-12
Shifts in RF
RF curve shifts right when
1. iF ↑: because RF ↑ at each
Et
2. Ee
t+1 ↓: because expected
appreciation of F ↑ at
each Et and RF ↑
Occurs Ee
t+1 ↓ iF:
1) Domestic P ↑,
2) Trade Barriers ↓
3) Imports ↑,
4) Exports ↓,
5) Productivity ↓
© 2005 Pearson Education Canada Inc.
© 2005 Pearson Education
Canada Inc. 19-13
Shifts in RD
RD shifts right when
1. iD ↑; because RD ↑
at each Et
Assumes that domestic πe
unchanged, so domestic
real rate ↑
© 2005 Pearson Education
Canada Inc. 19-14
Factors that
Shift RF
and RD
19-15
Response to i ↑ Because πe ↑
1. πe ↑, Ee
t+1 ↓, expected
appreciation of F ↑,
RF shifts out to
right
2. iD ↑, RD shifts to
right
However because πe ↑ > iD ↑,
real rate ↓, Ee
t+1 ↓ more than iD
↑ ⇒
RF out > RD out and Et ↓
© 2005 Pearson Education Canada Inc.
19-16
Response to Ms
↑
1. Ms
↑, P ↑, Ee
t+1 ↓,
expected appreciation
of F ↑, RF shifts
right
2. Ms
↑, iD ↓, RD shifts
left
Go to point 2 and Et ↓
3. In the long run, iD
returns to old level,
RD
shifts back, go
to point 3 and get
Exchange Rate
Overshooting
© 2005 Pearson Education Canada Inc.
© 2005 Pearson Education
Canada Inc. 19-17
Why Exchange Rate Volatility?
1. Expectations of Eet+1 fluctuate
2. Exchange rate overshooting

Ch19

  • 1.
    Chapter 19 The ForeignExchange Market © 2005 Pearson Education Canada Inc.
  • 2.
    © 2005 PearsonEducation Canada Inc. 19-2 Foreign Exchange Rates
  • 3.
    © 2005 PearsonEducation Canada Inc. 19-3 The Foreign Exchange Market Definitions: 1. Spot exchange rate 2. Forward exchange rate 3. Appreciation 4. Depreciation Currency appreciates, country’s goods prices ↑ abroad and foreign goods prices ↓ in that country 1. Makes domestic businesses less competitive 2. Benefits domestic consumers FX traded in over-the-counter market 1. Trade is in bank deposits denominated in different currencies
  • 4.
    19-4 Law of OnePrice Example: Canadian steel $100 per ton, Japanese steel 10,000 yen per ton If E = 50 yen/$ then prices are: Canadian Steel Japanese Steel In Canada $100 $200 In Japan 5000 yen 10,000 yen If E = 100 yen/$ then prices are: Canadian Steel Japanese Steel In Canada $100 $100 In Japan 10,000 yen 10,000 yen Law of one price ⇒ E = 100 yen/$ © 2005 Pearson Education Canada Inc.
  • 5.
    © 2005 PearsonEducation Canada Inc. 19-5 Purchasing Power Parity (PPP) PPP ⇒ Domestic price level ↑ 10%, domestic currency ↓ 10% 1. Application of law of one price to price levels 2. Works in long run, not short run Problems with PPP 1. All goods not identical in both countries: Toyota vs Chevy 2. Many goods and services are not traded: e.g. haircuts
  • 6.
    © 2005 PearsonEducation Canada Inc. 19-6 PPP: Canada and U.S.
  • 7.
    19-7 Factors Affecting Ein Long Run Basic Principle: If factor increases demand for domestic goods relative to foreign goods, E ↑ © 2005 Pearson Education Canada Inc.
  • 8.
    © 2005 PearsonEducation Canada Inc. 19-8 Expected Returns and Interest Parity Re for Francois Al $ Deposits iD + (Ee t+1 – Et)/Et iD Euro Deposits iF iF – (Ee t+1 – Et)/Et Relative Re iD – iF + (Ee t+1 – Et)/Et iD – iF + (Ee t+1 – Et)/Et Interest Parity Condition: $ and Euro deposits perfect substitutes iD = iF – (Ee t+1 – Et)/Et Example: if iD = 10% and expected appreciation of $, (Ee t+1– Et)/Et, = 5% ⇒ iF = 15%
  • 9.
    © 2005 PearsonEducation Canada Inc. 19-9 Deriving RF Curve Assume iF = 10%, Ee t+1 = 1 euro/$ Point A: Et = 0.95, RF = .10 – (1 – 0.95)/0.95 = .048 = 4.8% B: Et = 1.00, RF = .10 – (1 – 1.0)/1.0 = .100 =10.0% C: Et = 1.05, RF = .10 – (1 – 1.05)/1.05 = .148 = 14.8% RF curve connects these points and is upward sloping because when Et is higher, expected appreciation of F higher, RF ↑ Deriving RD Curve Points B, D, E, RD = 10%: so curve is vertical Equilibrium RD = RF at E* If Et > E*, RF > RD, sell $, Et ↓ If Et < E*, RF < RD, buy $, Et ↑
  • 10.
    © 2005 PearsonEducation Canada Inc. 19-10 Deriving RETF Curve Assume iF = 10%, Ee t+1 = 1 euro/$ Point A: Et = 0.95 RETF = .10 – (1 – 0.95)/0.95 = .048 = 4.8% B: Et = 1.00 RETF = .10 – (1 – 1.0)/1.0 = .100 =10.0% C: Et = 1.05 RETF = .10 – (1 – 1.05)/1.05 = .148 = 14.8% RETF curve connects these points and is upward sloping because when Et is higher, expected appreciation of F higher, RETF ↑ Deriving RETD Curve Points B, D, E, RETD = 10%: so curve is vertical Equilibrium RETD = RETF at E* If Et > E*, RETF > RETD, sell $, Et ↓ If Et < E*, RETF < RETD, buy $, Et ↑
  • 11.
    © 2005 PearsonEducation Canada Inc. 19-11 Equilibrium in the Foreign Exchange Market
  • 12.
    19-12 Shifts in RF RFcurve shifts right when 1. iF ↑: because RF ↑ at each Et 2. Ee t+1 ↓: because expected appreciation of F ↑ at each Et and RF ↑ Occurs Ee t+1 ↓ iF: 1) Domestic P ↑, 2) Trade Barriers ↓ 3) Imports ↑, 4) Exports ↓, 5) Productivity ↓ © 2005 Pearson Education Canada Inc.
  • 13.
    © 2005 PearsonEducation Canada Inc. 19-13 Shifts in RD RD shifts right when 1. iD ↑; because RD ↑ at each Et Assumes that domestic πe unchanged, so domestic real rate ↑
  • 14.
    © 2005 PearsonEducation Canada Inc. 19-14 Factors that Shift RF and RD
  • 15.
    19-15 Response to i↑ Because πe ↑ 1. πe ↑, Ee t+1 ↓, expected appreciation of F ↑, RF shifts out to right 2. iD ↑, RD shifts to right However because πe ↑ > iD ↑, real rate ↓, Ee t+1 ↓ more than iD ↑ ⇒ RF out > RD out and Et ↓ © 2005 Pearson Education Canada Inc.
  • 16.
    19-16 Response to Ms ↑ 1.Ms ↑, P ↑, Ee t+1 ↓, expected appreciation of F ↑, RF shifts right 2. Ms ↑, iD ↓, RD shifts left Go to point 2 and Et ↓ 3. In the long run, iD returns to old level, RD shifts back, go to point 3 and get Exchange Rate Overshooting © 2005 Pearson Education Canada Inc.
  • 17.
    © 2005 PearsonEducation Canada Inc. 19-17 Why Exchange Rate Volatility? 1. Expectations of Eet+1 fluctuate 2. Exchange rate overshooting