The IMF Working Papers series is designed to make IMF staff research available to a wide audience. Almost 300 Working Papers are released each year, covering a wide range of theoretical and analytical topics, including balance of payments, monetary and fiscal issues, global liquidity, and national and international economic developments.
This article analyzes the theory of equilibrium real exchange rates and defines misalignment as a deviation of the real exchange rate (RER) from its equilibrium level. The role of macroeconomic policies is then analyzed under three alternative nominal exchange rate regimes: predetermined nominal exchange rates; floating nominal rates; and dual or black market nominal exchange rates. This discussion points out how inconsistent macroeconomic policies often lead to real exchange rate misalignment. Corrective measures, including nominal devaluation and several alternative approaches, are then evaluated.
Existing models fail to explain the large fluctuations in the real exchange rates of most currencies over the past twenty years. The Natural Real Exchange Rate approach (NATREX) taken here offers an alternative paradigm to those which focus on short-run movements of nominal eschange rates, purchasing power parity of the representative agent intertemporal optimization models. Yet it is also neo-classical in its stress upon the accepted fundamentals driving a real economy. It concentrates on the real exchange rate, and explains medium- tolong-run movements in equilibrium real exchange rates in terms of fundamental variables: the productivity of capital and social (public plus private) thrift at home and abroad. The NATREX approach is a family of growth models, each tailored to the characteristics of the countries considered. The authors explain the real international value of the US dollar relativ to the G10 countries, and the US current account. These are two large economies. The model is also applied to small economies, where it explains the real value of the Australian dollar and the Latin American currencies relative to the US dollar. The model is relevant for developing countries where the foreign debt is a concern. Finally, it is applied to two medium-sized economies to explain the bilateral exchange rate between the French franc and the Deutsche Mark. The authors demonstrate both the promise of the NATREX model and its applicability to economies large and small. Alongside the analysis, econometrics, and technical details of these case studies, the introductory chapter explains in accessible terms the rationale behind the approach. The mix of theory and empirical evidence makes this book relevant to academics and advanced graduate students, and to central banks, ministries of finance, and those concerned with the foreign debt of developing countries.
How successful is PPP, and its extension in the monetary model, as a measure of the equilibrium exchange rate? What are the determinants and dynamics of equilibrium real exchange rates? How can misalignments be measured, and what are their causes? What are the effects of specific policies upon the equilibrium exchange rate? The answers to these questions are important to academic theorists, policymakers, international bankers and investment fund managers. This volume encompasses all of the competing views of equilibrium exchange rate determination, from PPP, through other reduced form models, to the macroeconomic balance approach. This volume is essentially empirical: what do we know about exchange rates? The different econometric and theoretical approaches taken by the various authors in this volume lead to mutually consistent conclusions. This consistency gives us confidence that significant progress has been made in understanding what are the fundamental determinants of exchange rates and what are the forces operating to bring them back in line with the fundamentals.
This book collects together the basic documents of an approach to the theory and policy of the balance of payments developed in the 1970s. The approach marked a return to the historical traditions of international monetary theory after some thirty years of departure from them – a departure occasioned by the international collapse of the 1930s, the Keynesian Revolution and a long period of war and post-war reconstruction in which the international monetary system was fragmented by exchange controls, currency inconvertibility and controls over international trade and capital movements.
''In summary, the book is valuable as a textbook both at the advanced undergraduate level and at the graduate level. It is also very useful for the economist who wants to be brought up-to-date on theoretical and empirical research on exchange rate behaviour.'' ""Journal of International Economics""
Economists writing on flexible exchange rates in the 1960s foresaw neither the magnitude nor the persistence of the changes in real exchange rates that have occurred in the last fifteen years. Unexpectedly large movements in relative prices have lead to sharp changes in exports and imports, disrupting normal trading relations and causing shifts in employment and output. Many of the largest changes are not equilibrium adjustments to real disturbances but represent instead sustained departures from long-run equilibrium levels, with real exchange rates remaining "misaligned" for years at a time. Contributors to Misalignment of Exchange Rates address a series of questions about misalignment. Several papers investigate the causes of misalignment and the extent to which observed movements in real exchange rates can be attributed to misalignment. These studies are conducted both empirically, through the experiences of the United States, Great Britain, Japan, and the countries of the European Monetary System, and theoretically, through models of imperfect competition. Attention is then turned to the effects of misalignment, especially on employment and production, and to detailed estimates of the effects of changes in exchange rates on several industries, including the U.S. auto industry. In response to the contention that there is significant "hysteresis" in the adjustment of employment and production to changes in exchange rates, contributors also attempt to determine whether the effects of misalignment can be reversed once exchange rates return to earlier levels. Finally, the issue of how to avoid—or at least control—misalignment through macroeconomic policy is confronted.
An equilibrium exchange rate is here defined as the level that is consistent with simultaneous internal and external balances as specified in Montiel (1996). Exogenous “fundamental” variables determining these balances are identified. Along the lines of Edwards (1994), a reduced form is estimated with the cointegration technique for Finland for the period 1975-95. The estimation produced a reasonable set of equilibrium exchange rates that appreciate with positive shocks to the terms of trade, world real interest rates, and the productivity differential between Finland and its trading partners.
The IMF's internal analysis of exchange rate issues has been guided by, and limited by, the conceptual and empirical frameworks that have emerged from the collective research of the economics profession. The research has provided several general approaches that are useful for assessing whether countries exchange rates seem broadly appropriate. One involves the calculation of purchasing power-party (PPP) measure or international competitiveness indicators. A second, known as the macroeconomic balance framework, focuses on the extent to which prevailing exchange rates and policies are consistent with simultaneous internal and external equilibrium over the medium run. Some recent extensions of the macroeconomic balance approach and the manner in which it is applied by the IMF staff are described in this paper.
