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.

NULL

This paper presents a theoretical and empirical analysis of policies aimed at setting a more depreciated level of the real exchange rate. An intertemporal optimizing model suggests that, in the absence of changes in fiscal policy, a more depreciated level of the real exchange can only be attained temporarily. This can be achieved by means of higher inflation and/or higher real interest rates, depending on the degree of capital mobility. Evidence for Brazil, Chile, and Colombia supports the model’s prediction that undervalued real exchange rates are associated with higher inflation.

We show that the response of firm-level investment to real exchange rate movements varies depending on the production structure of the economy. Firms in advanced economies and in emerging Asia increase investment when the domestic currency weakens, in line with the traditional Mundell-Fleming model. However, in other emerging market and developing economies, as well as some advanced economies with a low degree of structural economic complexity, corporate investment increases when the domestic currency strengthens. This result is consistent with Diaz Alejandro (1963)—in economies where capital goods are mostly imported, a stronger real exchange rate reduces investment costs for domestic firms.

The study cautiously identifies exchange rate misalignment as an important element in most of the exchange rate crises that plagued the developing world during the last decade. Given that the increasing integration of world capital markets, has escalated the costs of such crises, a broad consensus emerged in recent years, that the overriding objective of exchange rate policy in developing countries, should be to avoid episodes of prolonged, and substantial misalignment, i.e., situations in which the actual real exchange rate differs significantly from its long-run equilibrium value. It was the Bank's involvement in one such misalignment episode, that eventually led to this book. Following an overview on the concepts and measurement of exchange rate misalignment, its impact on the purchasing power parity, and the relationship between the external real exchange rate (RER), and the two-good internal RER for tradables non-tradables, the study presents methodologies - empirical applications - for estimating the RER equilibrium. The study reaches an optimistic conclusion - that enough is known to identify cases of misalignment, and be able to sound clear warning signals. The implication for exchange rate policy is that ignorance about the empirical value of the equilibrium exchange rate, cannot be used to clinch arguments for extreme exchange arrangements, such as clean floats, currency boards, and "dollarization."

Over the past two decades, many low- and lower-middle income countries (LLMICs) have improved control over fiscal policy, liberalized and deepened financial markets, and stabilized inflation at moderate levels. Monetary policy frameworks that have helped achieve these ends are being challenged by continued financial development and increased exposure to global capital markets. Many policymakers aspire to move beyond the basics of stability to implement monetary policy frameworks that better anchor inflation and promote macroeconomic stability and growth. Many of these LLMICs are thus considering and implementing improvements to their monetary policy frameworks. The recent successes of some LLMICs and the experiences of emerging and advanced economies, both early in their policy modernization process and following the global financial crisis, are valuable in identifying desirable features of such frameworks. This paper draws on those lessons to provide guidance on key elements of effective monetary policy frameworks for LLMICs.