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A Perspectiveon Predicting Currency Crises
Currency crises are difficult to predict. It could be that we are choosing the wrong variables or using the wrong models or adopting measurement techniques not up to the task. We set up a Monte Carlo experiment designed to evaluate the measurement techniques. In our study, the methods are given the right fundamentals and the right models and are evaluated on how closely the estimated predictions match the objectively correct predictions. We find that all methods do reasonably well when fundamentals are explosive and all do badly when fundamentals are merely highly volatile.
Policy Implications of "Second-Generation" Crisis Models
After the speculative attacks on government-controlled exchange rates in Europe and in Mexico, economists began to develop models of currency crises with multiple solutions. In these models, a currency crisis occurs when the economy suddenly jumps from one solution to another. This paper examines one of the new models, finding that raising the cost of devaluation may make a crisis more likely. Consequently, slow convergence to a monetary union, which increases the cost to the government of reneging on an exchange rate peg, may be counterproductive. This conclusion is exactly the opposite of that obtained from earlier models.
Exchange Rate Regime Choice
Traditionally the choice of exchange rate regime has been seen as a second-best policy choice, which can be directed toward mitigating the distortionary effects of price or information rigidities. In this paradigm the optimal degree of exchange rate flexibility is found to depend of the source and nature of shocks hitting an economy. More recent literature views the exchange rate as a widely and frequently seen manifestation of government policy with careful exchange-rate management emerging as a tool that can enhance shaky policy credibility.
Perspectiveson the Recent Currency Crisis Literature
In the 1990s, currency crises in Europe, Mexico, and Asia have drawn worldwide attention to speculative attacks on government-controlled exchange rates and have prompted researchers to undertake new theoretical and empirical analysis of these events. This paper provides some perspective on this work and relates it to earlier research. It derives the optimal commitment to a fixed exchange rate and proposes a common framework for analyzing currency crises. This framework stresses the important role of speculators and recognizes that the government’s commitment to a fixed exchange rate is constrained by other policy goals. The final section finds that some crises may be particularly difficult to predict using currently popular methods.
IMF Staff Papers, Volume 47, Special Issue, IMF Annual Research Conference,
This paper presents a broad overview of postwar analytical thinking on international macroeconomics, culminating in a more detailed discussion of recent progress. The paper reviews important empirical evidence that has inspired alternative modeling approaches, as well as theoretical and policy considerations behind developments in the field. The paper presents an empirical study of fiscal policy in countries with extreme monetary regimes. It also examines members of multilateral currency unions, dollarized countries that officially use the money of another country, and countries using currency boards.
Speculative Attacks and Models of Balance of Payments Crises
This paper reviews recent developments in the theoretical and empirical analysis of balance-of-payments crises. A simple analytical model highlighting the process leading to such crises is first developed. The basic framework is then extended to deal with a variety of issues, such as: alternative post-collapse regimes, uncertainty, real sector effects, external borrowing and capital controls, imperfect asset substitutability, sticky prices, and endogenous policy switches. Empirical evidence on the collapse of exchange rate regimes is also examined, and the major implications of the analysis for macroeconomic policy discussed.
A Theory of Optimum Currency Areas
Starting with Friedman and Mundell the academic literature has conducted a high level debate concerning the design of cross-country monetary arrangements. That debate has become very complex and the data requirements necessary for appropriate application of the principles developed are far beyond the means of the very nations for which the principles might be valuable. In this paper we return to the simplicity of the early arguments and formalize them in a way that may be helpful for currency area decisions where little is known about economic structure.
An Empirical Exploration of Exchange Rate Target-Zones
In the context of a flexible-price monetary exchange rate model and the assumption of uncovered interest parity, we obtain a measure of the fundamental determinant of exchange rates. Daily data for the European Monetary System are used to explore the importance of nonlinearities in the relationship between the exchange rates and fundamentals. Many implications of existing “target-zone” exchange rate models are tested; little support is found for existing nonlinear models of limited exchange rate flexibility.
Anticipated Exchange Rate Reforms
Exchange rate reforms in developing countries have often aimed at floating the exchange rate in an attempt to unify the official and parallel markets for foreign exchange. This paper examines the anticipatory dynamics associated with such reforms. The analysis shows that if the future unified exchange rate is more depreciated than the prevailing official rate, a pre - announced reform will lead to a depreciation of the parallel rate upon announcement and, during the transition period, a rising premium, an increase in the rate of reserve losses, and possibly to an output contraction and an appreciation of the real exchange rate.
Issues Concerning Nominal Anchors for Monetary Policy
This paper presents a selective survey of issues relevant to the choice of nominal anchors for monetary policy. Section I reviews long price-level histories for the United Kingdom and United States, which reveal that the price level behaved very differently following WWII in these countries than it had done in previous post-war experiences. In particular following WWII the responsibilities of monetary policy expanded to encompass a business- cycle stabilization role and the nominal anchor shifted from the fixed anchor or price-level stability to the moving anchor of inflation-rate stability. The remaining sections of the paper review some of the considerations that are relevant to setting the average inflation rate in countries without a fixed nominal anchor.
