TRADE UNIONS, WAGE FORMATION AND MACROECONOMIC STABILITY TOPICS IN CONTEMPORARY ECONOMIC ANALYSIS Edited by Peter Bohm and Allen V. Kneese THE ECONOMICS OF ENVIRONMENT Edited by Jan Herin, Assar Lindbeck and Johan Myhrman FLEXIBLE EXCHANGE RATES AND STABILIZATION POLICY Edited by Steinar Str0m and Lars Werin TOPICS IN DISEQUILIBRIUM ECONOMICS Edited by Steinar Str0m and Bjorn Thalberg THE THEORETICAL CONTRIBUTIONS OF KNUT WICKSELL Edited by Steinar Str0m MEASUREMENT IN PUBLIC CHOICE Edited by Lars Matthiessen and Steinar Str0m UNEMPLOYMENT: MACRO AND MICRO-ECONOMIC EXPLANATIONS Edited by Lars Matthiessen THE IMPACT OF RISING OIL PRICES ON THE WORLD ECONOMY Edited by Lars Calmfors LONG-RUN EFFECTS OF SHORT-RUN STABILIZATION POLICY Edited by Finn R. F!llrsund TOPICS IN PRODUCTION THEORY Edited by Finn R. F0rsund and Seppo Honkapohja LIMITS AND PROBLEMS OF TAXATION Edited by Lars Calmfors and Henrik Horn TRADE UNIONS, WAGE FORMATION AND MACROECONOMIC STABILITY Series Standing Order If you would like to receive future titles in this series as they are published, you can make use of our standing order facility. To place a standing order please contact your bookseller or, in case of difficulty, write to us at the address below with your name and address and the name of the series. Please state with which title you wish to begin your standing order. (If you live outside the UK we may not have the rights for your area, in which case we will forward your order to the publisher concerned.) Standing Order Service, Macmillan Distribution Ltd, Houndmills, Basingstoke, Hampshire, RG212XS, England TRADE UNIONS, WAGE FORMATION AND MACROECONOMIC STABILITY Edited by Lars Calmfors Associate Professor and Senior Research Fellow Institute for International Economic Studies University of Stockholm and Henrik Horn Research Fellow Institute for International Economic Studies University of Stockholm M MACMILLAN © The Scandinavian Journal of Economics, 1985, 1986 Softcover reprint of the hardcover 1st edition 1986 978-0-333-40963-3 All rights reserved. No reproduction, copy or transmission of this publication may be made without written permission. No paragraph of this publication may be reproduced, copied or transmitted save with written permission or in accordance with the provisions of the Copyright Act 1956 (as amended). Any person who does any unauthorised act in relation to this publication may be liable to criminal prosecution and civil claims for damages. This collection was originally published in TheScandinavianJournalofEconomics, Vol. 87,1985, No.2 First published in book form 1986 by TilE MACMILLAN PRESS LTD Houndmills, Basingstoke, Hampshire RG21 2XS and London Companies and representatives throughout the world British Library of Cataloguing in Publication Data Trade unions, wage formation and macroeconomic stability.-(Topics in contemporary economic analysis) 1. Economic stabilization 2. Wages 3. Trade unions I. Calmfors, Lars II. Hom, Henrik Ill. Series 331.2'15 HB3730 ISBN 978-1-349-08598-9 ISBN 978-1-349-08596-5 (eBook) DOI 10.1007/978-1-349-08596-5 Contents Contributors' Affiliations vii Trade Unions, Wage Formation and Macroeconomic Stability-An Introduction. By Lars Calmfors . . . . . . . . . . . . . . . 1 Part I. Microeconomic Underpinnings The Economic Theory of Trade Unions: An Introductory Survey. By Andrew J. Oswald 18 Comment by George Johnson . . . . . . . . . . . . . . . . . . . . 52 Wages and Employment under Trade Unionism: Microeconomic Models and Macroeconomic Applications. By John Pencavel 55 Comments by Andrew J. Oswald and Berti/ Holmlund . . . . . 84 Part II. Centralized Wage Setting Classical Unemployment, Accommodation Policies and the Ad justment of Real Wages. By Lars Calmfors and Henrik Horn . . 92 Comments by Lars Jonung and Richard Layard 120 Workers versus Government-Who Adjusts to Whom? By Tor Hersoug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Comments by Thorvaldur Gylfason and Henryk Kierzkowski . . . 151 Macroeconomic Stabilization Policy and Trade Union Behavior as a Repeated Game. By John Driffi/1 . . . . . . . . . . . . . . . . 158 Comments by Stanley Fischer and Matti Pohjola .......... 185 Union Militancy, External Shocks and the Accommodation Dilem- ma. By Hans Tson Soderstrom . . . . . . . . . . . . . . . . . . 193 Comments by Guido de Bruyne and EdmundS. Phelps ..... 210 vi Contents Part Ill. Decentralized Wage Setting Counterinflationary Policy in a Unionised Economy with Non- synchronised Wage Setting. By Richard Jackman ........ 215 Comments by John Fender and Thorvaldur Gylfason . . . . . . . 237 Dynamics of Unemployment, Vacancies and Real Wages with Trade Unions. By Christopher Pissarides . . . . . . . . . . . . . 244 Comments by Masahiko Aoki and EdmundS. Phelps ....... 262 Insiders and Outsiders in Wage Determination. By Robert Solow 269 Comments by Henryk Kierzkowski and Dennis Snower ...... 287 Part IV. Empirical Applications Wage Gaps, Factor Shares and Real Wages. By John McCallum 294 Comment by Eskil Wadensjo . 318 Contributors' Affiliations Masahiko Aoki Stanford University, Stanford, CA, USA Lars Calmfors Institute for International Economic Studies, Stockholm, Sweden Guido de Bruyne University of Louvain, Belgium John Driffill University of Southampton, England John Fender University of Lancaster, England Stanley Fischer Massachusetts Institute of Technology, Cambridge, MA,USA Thorvaldur Gylfason University of Iceland, Reykjavik, Iceland TorHersoug University of Oslo, Norway Bertil Holmlund Industrial Institute for Economic and Social Research, Stockholm, Sweden HenrikHorn Institute for International Economic Studies, Stockholm, Sweden Richard Jackman London School of Economics, London, England George Johnson University of Michigan, Ann Arbor, MI, USA LarsJonung University of Lund, Sweden Henryk Kierzkowski Graduate Institute oflnternational Studies, Geneva, Switzerland Richard Layard London School of Economics, London, England John McCallum University of Quebec, Montreal, Quebec, Canada Andrew J. Oswald Institute of Economics and Statistics and StJohn's College, Oxford, England John Pencavel Stanford University, Stanford, CA, USA EdmundS. Phelps Columbia University, New York, NY, USA Christopher Pissarides London School of Economics, London, England Matti Pohjola University of Helsinki, Finland Dennis Snower Birkbeck College, University of London, England Hans Tson Soderstrom Business and Social Research Institute, Stockholm, Sweden Robert M. Solow Massachusetts Institute of Technology, Cambridge, MA,USA Eskil Wadensjo Institute for Social Research, Stockholm, Sweden 'Irade Unions, Wage Formation and Macroeconomic Stability-An Introduction* Lars Calmfors** Institute for International Economic Studies, Stockholm, Sweden The process of wage formation is a crucial aspect of the current discussion about the causes of stagflation. In fact, differences between various policy prescriptions usually depend on differing assumptions about wage re sponses. Proposals to reduce unemployment through expansion of mone tary demand are usually based on assumptions of rigid money wages. In contrast, recommendations of non-intervention policies often rest on the opposite assumption of rigid real wages, in which case monetary expansion will cause inflation but not affect employment. Unfortunately, our knowledge about wage formation is very incomplete. The macroeconomic literature abounds with models which contain assump tions about fixed money or fixed real wages, but these assumptions have no-or only weak-theoretical underpinnings. The Phillips-curve approach, which explains wage increases by excess demand in the labor market and expected inflation, is to a large extent theoretically ad hoc, although it has proved empirically valuable. Determinants of the speed at which deviations of actual unemployment from the equilibrium (natural) rate affect wage inflation are seldom explained. Nor is there always any explanation regard ing the determinants of the equilibrium rate of unemployment, which is instead often treated as exogenous. The macroeconomic literature of the 1960s and 1970s paid little attention to actual institutions in the labor market and especially to trade unions; they lived a life of their own in labor economics but were not integrated into the mainstream of economic theory. This may have reflected the US dominance in economics. In an economy where trade unions organize only about 20% of the labor force, it may be reasonable to treat labor markets as atomistic as a first approximation in macroeconomic analysis. But for • This issue contains the proceedings from a conference held in Saltsjobaden, Sweden, August 2&-29, 1984. The conference was organized by the Institute for International Economic Studies, University of Stockholm, and financed by The Bank of Sweden Tercentenary Foundation. •• I am grateful for helpful comments from Bertil Holmlund, Seppo Honkapohja, Henrik Hom, Richard Jackman, Assar Lindbeck, John McCallum, Andrew Oswald, John Pencavel, Robert Solow, Lars Svensson, Hans SOderstrom and Eskil Wadensjo. 2 L. Calmfors European countries, where union participation rates are much higher-as much as 70-90% in the Scandinavian countries, Belgium and Austria, as discussed by e.g. Faxen (1982)-and where union contracts often cover unorganized labor as well, neglect of trade unions may be fatal for the understanding of macroeconomic problems. Of course, it cannot a priori be ruled out that labor market organizations are only a "veil" and that they may mimic the behavior of atomistic markets; but if so, this must be shown and not merely assumed. Recent years have seen a remarkable growth, pa_rticularly in Europe, of reseach on trade unions and wage formation. This probably. depends on several factors. One may be the long-run tendency of nominal wage in creases in excess of productivity gains in Europe in the 1960s and early 1970s and the inertia of real wages after the oil price shocks. Another factor is probably the greater belief of economists in general in the applicability of economic theory. During the last decade there has been a profusion of models where an increasing number of aspects of human life are explained in terms of optimizing behavior on the part of individual agents. It is natural that this tendency also affects work on trade unions and wage setting. The new literature on wage formation has two main characteristics. First, it concentrates more on trade unions than on employers. One reason may be that we know less about union behavior than about the behavior of profit-maximizing employers. Second, it can be seen as an attempt to find out how far we can get in this area using conventional assumptions about maximization of well-defined preference functions under given constraints. This volume covers four areas. The first is the basic micro theory of trade union behavior and wage setting, which is treated by Oswald and Pencavel. The second concerns the interaction between governments and trade un ions in economies with centralized wage setting. Calmfors & Hom, Her soug, Driffill, and Soderstrom consider various aspects of this problem. The third area concerns the effects of trade unions under decentralized wage setting, as dealt with by Jackman, Pissarides and Solow. The fourth area covers empirical applications, which are made by McCallum and also by Pencavel. I. Microeconomic Underpinnings Oswald summarizes recent theoretical research on the micro theory of union behavior, according to which unions care about both (real) wages and employment. This formulation has either been postulated as a "revealed preferences description" of union behavior or derived from individual preferences of union members. In the simplest formulations of the latter approach, all members of the union are treated alike, and the union's utility is the expected utility of a representative member. It thus equals a weighted