FLOATING EXCHANGE RATES and WORLD INFLATION the Effect Of

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FLOATING EXCHANGE RATES and WORLD INFLATION the Effect Of FLOATING EXCHANGE RATES AND WORLD INFLATION The effect of flexible exchange rates on world inflation is among the most controversial current issues in the study of the international monetary system. This issue raises profound questions about the degree to which domestic inflationary propensities and their transmission across coun­ tries are conditioned by the nature of the exchange-rate regime. These questions themselves concern more fundamental problems of exchange­ rate determination, of price formation in open economies, and the degree of monetary independence and its implications for macro­ economic stabilisation. This book provides the reader with a provocative economic perspective on contemporary international monetary arrangements and their influence on the generation and transmission of inflation in the world economy. Professor Ahmad's analysis represents Vte first attempt to move beyond narrow orthodoxies, and to provide a comprehensive and systematic treatment of the complex interaction between markets for goods, for labour, for interest-bearing assets, and for foreign exchange in determining the behaviour of the price level. The book brings together in one volume the interpretation of diverse and often competing theories, as well as of major empirical insights. While some technical material is unavoidable in a work of this kind, the major part of the text is kept as readable as possible. Floating Exchange Rates and World Inflation deserves to be read by everyone interested in exploring the relationship between international monetary arrange­ ments and world inflation. Jaleel Ahmad is Professor of International Economics at Concordia University in Montreal. He is also the author of Import Substitution, Trade and Development (1978) and of numerous papers in professional journals and edited volumes. He has served as consultant to various international agencies in the field of foreign trade, finance and development. FLOATING EXCHANGE RATES AND WORLD INFLATION laleel Ahmad Professor of Economics Concordia University, Montreal M MACMILLAN © laleel Ahmad 1984 Softcover reprint of the hardcover 1st edition 1984 All rights reserved. No part of this publication may be reproduced or transmitted, in any form or by any means, without permission. First published 1984 by THE MACMILLAN PRESS LTD London and Basingstoke Companies and representatives throughout the world ISBN 978-1-349-17476-8 ISBN 978-1-349-17474-4 (eBook) DOI 10.1007/978-1-349-17474-4 Contents Preface IX 1 INTRODUCTION 1 Complexity of the Analysis 7 Plan of Study 9 2 RECENT INNOVATIONS IN THE THEORY OF INFLATION 11 The Phillips Curve 12 Demand Pull, Cost Push and the Quantity Theory 13 The Natural Rate of Unemployment 15 Rational Expectations 19 Autonomous Cost Push 21 Concluding Observations 24 3 THEORETICAL APPROACHES TO WORLD INFLATION IN FIXED EXCHANGE-RATE REGIMES 28 International Quantity Theory 28 A Simple Monetary Model 30 A Critique of the Monetarist Approach to World Inflation 35 Keynesian and Phillips Curve Approaches 38 An Illustrative Keynesian-Phillips Curve Model 39 Convergence of National Inflation Rates 40 The Scandinavian Model of Inflation 42 International Transmission of Disturbances 47 Transmission of Inflation Under Fixed Exchange Rates 48 Import and Export of Inflation 52 Conclusion 53 vi Contents 4 THEORETICAL APPROACHES TO WORLD INFLATION IN FLOATING EXCHANGE RATE REGIMES 56 Price Insulation Under Flexible Exchange Rates 57 Monetary Independence 61 International Transmission with Capital Mobility 63 Asset Markets and Flexible Exchange Rates 65 A Model of Short-run Exchange-Rate Determination 66 Overshooting of the Exchange Rate 69 Exchange Rates and Inflation in the Short Run 71 Exchange-Rate Expectations and World Inflation 73 Wage and Price Behaviour in the Short Run 76 Wage-Push and Indexation 80 The Long and the Short Run 82 Synchronisation of Economic Activity and Price Levels 88 Empirical Evidence on Inflationary Transmission 90 Conclusion 93 5 WORLD INFLATION, WORLD MONEY SUPPLY AND MONETARY CONTROL 100 Measurement of World Inflation 100 Measurement of World Money Supply 102 Empirical Studies of World Inflation and World Money Supply 104 International Reserves and World Price Level 107 Reserves, Money Supply and World Inflation during the Period of Managed Floating 110 Monetary Control and Inflation 114 Monetary Targets in OECD Countries 116 Problems of Monetary Control 119 Monetary Targets v. Exchange-Rate Targets 122 Monetary Targets and Recession 123 Microeconomic Effects of Monetary Control 125 Concluding Observations 126 6 THE RESERVE DISCIPLINE 131 Inflation-Unemployment Trade-off Under Fixed Exchange Rates 133 The Trade-off Under Floating Exchange-Rate Regimes 134 Empirical Evidence 135 Long-run Trade-off and Rational Expectations 137 Contents vii Political Costs of Devaluation 140 Concluding Comments 141 7 THE VICIOUS CIRCLE OF INFLATION AND DEPRECIATION 143 Phases of the Vicious Circle 144 Wage-Price Spiral 146 A Keynesian Interpretation 148 Components of the Vicious Circle and their Empirical Verification 151 Depreciation and the Price of Traded Goods 151 Traded Goods' Prices and Domestic Inflation 152 Empirical Test of the Vicious Circle Hypothesis 154 Vicious Circle and the Role of Policy 156 Breaking the Vicious Circle 160 8 ASYMMETRIES IN PRICE RESPONSES AND RATCHET EFFECTS 163 Mundell-Laffer Proposition 164 A Monetary Interpretation of the Ratchet 165 The Law of One Price and Other Assumptions of the Ratchet Hypothesis 167 Downward Price Inflexibility 171 Further Asymmetries and Ratchets 172 9 EXCHANGE RISKS, TRANSACTION COSTS AND WORLD INFLATION 174 Risks of Exchange-Rate Flexibility 175 Price Risk 176 Transaction Costs 177 Effects on the Price Level 181 10 INTERNATIONAL LIQUIDITY AND WORLD INFLATION 183 International Liquidity and the Price Level 184 Growth of International Liquidity 185 Eurocurrency Markets and International Liquidity 187 Liquidity Creation in the Eurocurrency Market 189 Inflationary Impact of Eurocurrencies 191 Demand and Supply of Liquidity under Floating Exchange Ra~ l~ viii Contents Demand Orientation of International Liquidity under Floating Exchange-Rate Regime 196 Quantity Theory Once Again 197 Concluding Observations 199 11 EXCHANGE RATES AND WORLD INFLATION: OVERALL CONCLUSIONS 202 Generation v. Transmission of Inflation 202 Exchange-Rate Flexibility and Price Insulation 205 Floating Exchange Rates and Wage-Price Spirals 208 Monetary Growth and World Inflation 210 Incomes Policies? 212 Ratchet Effects 213 Short-run Effects of Exchange-Rate Changes 213 Final Comments 214 References 218 Author Index 244 Subject Index 249 Preface This book grew out of an attempt to answer the question: Are floating exchange rates inflationary? This question raises a number of other questions which are not easily answered. The emergence of strong inflationary pressures throughout the industrial world in a period which roughly coincided with the beginning of managed floating has aroused a widespread suspicion about the possible inflationary propensity of floating exchange rates. Despite their theoretical superiority in bottling up national inflation rates, floating exchange rates in the current regime appear to have done little to prevent inflationary impulses from spreading around through subtle and as yet unclear channels. Other ways in which floating exchange rates are seen to have lent an inflationary bias to the world economy include possibly a loss of discipline in allowing permissive monetary and fiscal policies, assorted price asymmetries in appreciating and depreciating currencies, ratchet effects, vicious circles between depreciation and inflation, and rapid increases in international liquidity. None of these views, of course, flourishes unchallenged. Inflation under floating exchange rates appears to be the most controversial current issue in this area. Previous approaches to the study of inflationary phenomena under flexible exchange rates have been generally narrower, focusing on particular theoretical viewpoints (e.g. monetarist, neo-Keynesian). As a result, theoretical and empirical analyses of the subject have tended to exist in mutual isolation from one another. The focus in this book is much broader. Here an attempt is made to analyse the full complexity of floating exchange rates in their interaction with the market for goods, for labour, and for assets. This is done without the confining disability of any particular narrow theoretical label. My primary purpose is to examine the cluster of doctrines and empirical propositions concerning the alleged inflationary propensities of floating exchange rates since 1973--4. Any attempt to analyse the effect of exchange-rate variations on the world price level is bound to involve the wider issues of price-level behaviour in open economies, ix x Preface exchange-rate determination, and the efficacy of monetary and fiscal policies. Not only the scope of the domestic price stabilisation policies but also the channels and the speed by which price and other macroeconomic disturbances propagate themselves internationally can vary greatly with the nature of the exchange-rate regime. The fact that average levels of inflation may rise or fall in future does not detract from the abiding nature of the problem. A portion of my task has been to pull together a number of different strands scattered throughout the voluminous literature on internationat finance and open-economy macroeconomics. Much of the theoretical literature on floating exchange rates is disjointed
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