Exchange Market Mayhem: The Antecedents and Aftermath of Speculative Attacks

Abstract

Exchange market mayhem The antecedents and aftermath of speculative attacks This paper evaluates the causes and consequences of episodes of turbulence in foreign exchange markets. Using data from 1959 through 1993 for twenty OECD countries, we consider the antecedents and aftermath of devaluations and revaluations, flotations, fixings and speculative attacks (which may not be successful). We find that realignments of fixed exchange rates are alike: devaluations are preceded by political instability, budget and current account deficits, and fast growth of money and prices. Revaluations are mirror images of devaluations. Speculative attacks resemble devaluations, but money growth and inflation are more endemic and there is no last-minute attempt to tighten monetary policy. In contrast, few consistent correlations link regime transitions like flotations or fixings to macroeconomic or political variables. Transitions between exchange rate regimes are largely idiosyncratic, and are neither consistently provoked ex ante by systematic imbalances, nor typically justified ex post by subsequent changes in policy. We conclude that there are no clear early warning signals of many speculative attacks, and no easy solutions for policy-makers. — Barry Eichengreen, Andrew K. Rose and Charles Wyplosz