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Working Paper
Financial crises in emerging markets: a canonical model
We present a simple model that can account for the main features of recent financial crises in emerging markets. The international illiquidity of the domestic financial system is at the center of the problem. Illiquid banks are a necessary and a sufficient condition for financial crises to occur. Domestic financial liberalization and capital flows from abroad (especially if short-term) can aggravate the illiquidity of banks and increase their vulnerability to exogenous shocks and shifts in expectations. A bank collapse multiplies the harmful effects of an initial shock, as a credit squeeze ...
Journal Article
Understanding recent crises in emerging markets
The world economy is going through a difficult and dangerous period. The recent Brazilian currency meltdown is one more in a series of events that includes the Asian crises of 1997-98 and the Mexican crash in 1994, and there is uncertainty about whether other emerging economies will be infected with the Brazilian virus. ; Dealing with crises in emerging economies is, therefore, an urgent matter. However, what to do about these crises is a source of heated debate. According to the author of this article, much of the confusion arises from the fact that accumulated knowledge about crises in ...
Working Paper
Bargaining a monetary union
Working Paper
Liquidity crises in emerging markets: Theory and policy
We build a model of financial sector illiquidity in an open economy. Illiquidity is defined as a situation in which a country's consolidated financial system has potential short-term obligations that exceed the amount of foreign currency available on short notice. We show that illiquidity is key in the generation of self-fulfilling bank and/or currency crises. We discuss the policy implications of the model and study issues associated with capital inflows and the maturity of external debt, the role of real exchange depreciation, options for financial regulation, fiscal policy, and exchange ...
Working Paper
Financial fragility and the exchange rate regime
We study financial fragility, exchange rate crises, and monetary policy in an open economy version of a Diamond-Dybvig model. The banking system, the exchange rate regime, and central bank credit policy are seen as parts of a mechanism intended to maximize social welfare; if the mechanism fails, banking crises and speculative attacks become possible. We compare currency boards, fixed rates, and flexible rates with and without a lender of last resort. A currency board cannot implement a socially optimal allocation; in addition, bank runs are possible under a currency board. A fixed exchange ...
Working Paper
The Asian liquidity crisis
A country's financial system is internationally illiquid if its potential short-term obligations in foreign currency exceed the amount of foreign currency it can have access to in short notice. This condition may be necessary and sufficient for financial crises and/or exchange rate collapses (Chang and Velasco 1998a, b). In this paper we argue that the 1997-98 crises in Asia were in fact a consequence of international illiquidity. This follows from an analysis of empirical indicators of illiquidity as well as other macroeconomic statistics. We trace the emergence of illiquidity to financial ...
Journal Article
Policy credibility and the design of central banks
In recent years several countries have granted greater independence to their central banks; others have made price stability the only objective of monetary policy. These two trends can be seen as social responses to a fundamental problem of central bank credibility called the time inconsistency of monetary policy. The theory and some empirical aspects of time inconsistency are the subject of this article. ; The theory emphasizes that expected and actual inflation will be larger if a central bank cannot credibly commit to honor commitments to keep inflation low than if it can. To ameliorate ...
Working Paper
Private investment and sovereign debt negotiations
Journal Article
Is a weak dollar inflationary?
Since the early seventies, the U.S. dollar has been allowed to float freely, and its exchange rates have become extremely volatile and difficult to explain, let alone to predict. The dollar's erratic behavior has stimulated a lively debate in academic and policy circles over what the government's response should be. One of the major questions that must be answered before a response can be contemplated is whether dollar exchange rate changes influence U.S. inflation. ; This article examines the empirical relationship between dollar movements and inflation in the United States. Historical ...