Demonetization involves stripping a currency unit of its status as legal tender. The document discusses the reasons for and effects of India's 2016 demonetization, which aimed to eradicate counterfeit currency, fight tax evasion, and promote a cashless economy. The short-term effects included liquidity stress and economic chaos. However, it increased cashless transactions by 400-1000% and led to 86% of cash deposits in banks, increasing liquidity. This higher liquidity enabled banks to lower lending interest rates and incentivize more investment. Both monetary and fiscal policy tools could be used to further stimulate the economy in light of reduced money supply and consumption.