Einars Repše During this period, he oversaw the introduction of the Latvian rublis, Latvia's temporary transition currency, and the Lats, independent Latvia's new currency. Under Repše, the Bank of Latvia pursued a tight monetary policy, implementing a de facto currency board for the Lats. As a result, the exchange rate of the lat has been stable since the early 1990s till now. The success of the Lats made Repše very popular in Latvia. In 2001, Repše resigned from the Bank of Latvia to return to politics. He founded the New Era Party, a Populist anti-corruption party. After the 2002 elections, Repše became
Currency substitution displaced by a stable currency. At the beginning of this process, the store-of-value function of the domestic currency is replaced by the foreign currency. Then, the unit-of-account function of the domestic currency is displaced when many prices are quoted in a foreign currency. A prolonged period of high inflation will induce the domestic currency to lose its function as medium of exchange when the public carries out many transactions in foreign currency. Ize and Levy-Yeyati (1998) examine the determinants of deposit and credit currency substitution, concluding that currency substitution is driven by the volatility of inflation and the real exchange