We show the importance of a dynamic aggregation bias in accounting for the PPP puzzle. We prove that established time-series and panel methods substantially exaggerate the persistence of real exchange rates because of heterogeneity in the dynamics of disaggregated relative prices. When...

Fixed exchange rate regimes have come into disrepute, as their defense has become all but impossible. Yet, while a determined attack on a currency cannot be prevented or, ultimately, withstood, policies can reduce the vulnerability of a country to such attacks. The paper develops an analytical...

This paper investigates the factors behind the significant improvement in Brazil's external accounts and wide fluctuations of the real exchange rate since the floating of the real in 1999. Particular attention is devoted to the strong appreciation of the real from 2003-05. Econometric estimates...

Questions about external competitiveness, exchange rate misalignment, and the appropriate exchange rate policy feature prominently in the Russian policy debate. This paper furthers the debate by estimating empirically Russia's equilibrium real exchange rate (ERER)-that is, the rate consistent...

Did real overvaluation contribute to the 1991 currency crisis in India? This paper seeks an answer by constructing the equilibrium real exchange rate, using an error correction model and a technique developed by Gonzalo and Granger (1995). The results are affirmative and the evidence indicates...

This paper reviews the experience with capital controls in industrial and developing countries, considers the policy issues raised when the effectiveness of capital controls diminishes, examines the medium-term benefits and costs of an open capital account, and analyzes the policy measures that...

This study provides evidence that episodes of internal stability of exchange rates among the 11 Euro countries during 1957-98 were associated with periods of lower real commodity price volatility. These stabilizing effects are statistically significant for fertilizer, metals, petroleum, and...

We examine the implications of high degrees of dollarization for the choice of exchange rate regime and the information content of various monetary aggregates in developing countries. We conclude that a high degree of currency substitution argues for a more fixed exchange rate regime, while...

This paper examines the question of how to design an optimal and sustainable exchange rate regime in a world economy of two interdependent countries. It develops a Barro-Gordon type two-country model and compares noncooperative equilibria under different assumptions of monetary policy...

The “hollowing-out,” or “two poles” hypothesis is tested in the context of a Markov chain model of exchange rate transitions. In particular, two versions of the hypothesis—that hard pegs are an absorbing state, or that fixes and floats form a closed set, with no transitions to...