The golden rule of accumulation and the open economy

Summary This paper examines the factors which determine the volume of consumption per capita in a small open economy in the long run. The analysis is based on a neoclassical model. It is proved that-in general — Phelps' golden rule of accumulation does not hold for an open economy. This conclusion follows from the decline in the terms of trade, which is generated in an open economy by an increase in the share of investment. The influence of labour supply and world expenditure on the consumption per capita also depend heavily on the induced change in the terms of trade. The analytical results of the model are illustrated by means of a few numerical examples.This paper is written within the framework of the research program Possibilities and Limitations of National and International Economic Policy, code K.H.T. XIII-85-44.     

Forward exchange,short term capital flows and monetary policy

Summary This paper re-examines the relationships between short term capital flows and monetary policy, in the light of a new theoretical approach of the forward exchange market. They contend that the traditional forward exchange market theory is a misleading one as it fails to give all the importance it deserves to the distinction between covered and uncovered exchange transactions and to the actual role of the arbitrageurs. As a consequence of this analysis, they demonstrate that the problem of monetary management in an open economy must be dealt with in a way different from what has been usual, and they conclude that monetary policy, central banks' intervention on the foreign exchange market and direct controls on capital movements can still have some efficiency in the struggle against inflation, either of the domestic or the imported type.     

Tax Level and Tax Internalization Effects on Union Wage Bargaining

High taxes and generous social benefits are often blamed for causing unemployment. The conventional view is that if taxes on labour are (too) high, jobs will be lost and that generous social benefits will exert an upward pressure on unions' wage claims. In the case where unions co-ordinate their wage bargaining strategy, this need not be the case. A simple model is used to illustrate the effects of the tax rate level and tax internalization on unions' wage bargaining strategy. A high marginal tax rate along with endogeneity of the average tax rate shifts the union's trade-off between wages and employment in favour of the latter. These shifts may have contributed to the success of the so-called polder model or tulip model of the Netherlands.     

Equity and efficiency in unemployment insurance

Summary This paper is concerned with equity and efficiency in unemployment insurance. It examines the rationales for unemployment insurance, or more generally, social security. It stresses that social security is a second-best solution, since, in practice, taxes that do not distort economic decisions and benefits without moral hazard are impossible. The paper determines a relation between the feasible levels of equity and efficiency,i.e., the output possibilities curve. Three typical views on equity are confronted with this output possibilities curve: the extreme liberal view, the moderate liberal view and the egalitarian view. We construct two output possibilities curves for unemployment insurance in The Netherlands: one curve, assuming that the Dutch labour market is characterized by excess supply and another curve, assuming that the Dutch labour market is instantaneously cleared by flexible wages. The equilibrium model yields substantially higher efficiency costs of Dutch unemployment insurance than the disequilibrium model. Finally, we calculate the output gains of a mini-system of unemployment insurance. Again, the results indicate that much depends on what is in the eye of the beholder.At the time of writing research fellow at the Applied Labour Economics Research Team (ALERT) of the Vrije Universiteit, Amsterdam and the Tinbergen Institute. The author thanks an anonymous referee ofDe Economist, Frank den Butter, Bernard Compaijen, Edmond Malinvaud, Christopher Pissarides, Niels Westergaard-Nielsen, Rob van de Wijngaert, Gerrit Zalm and the participants of the ALERT/Tinbergen Institute workshops Modelling the Labour Market (6–8 January 1992 at the Vrije Universiteit, Amsterdam) and Dutch Thoughts on Unemployment (18 March 1992 at the Vrije Universiteit, Amsterdam) for their useful comments on earlier versions of this paper. The usual disclaimer applies.     

Minimum wage rates and unemployment in The Netherlands

Summary A static limited dependent variable model is formulated to analyse the Dutch labour market from an individual's viewpoint. Results suggest that high minimum labour costs are an important source of unemployment. Secondly, the reduced-form participation equation is replaced by a neoclassical labour supply equation. Thus, also the effect of high minimum wage rates on employment through labour supply is taken into account. Supply appears to be forward bending and participation is insensitive with respect to unemployment benefits. Simulations suggest that the effect of lowering the productivity threshold by reducing before-tax minimum wages dominates supply effects.The author wishes to thank Geert Joosten, Arie Kapteyn, Peter Kooreman, Bertrand Melenberg, Viji Narendranathan and Theo Nijman for helpful comments and the Netherlands Central Bureau of Statistics for providing the data. The views expressed in this paper do not necessarily reflect the policies of the CBS.     

Labour Market Policy and Welfare Reform: Meeting Distribution and Efficiency Objectives

Alongside the growth in overall employment and the steady rise in average real incomes over the 1990s, many developed countries experienced a concentration of low labour market attachment and low pay among certain groups in society. In response, the focus of welfare policy shifted towards targeted making work pay programs. This paper considers the validity of the arguments underlying this shift in welfare policy. It examines two broad classes of policies: active labour market programs and earned income tax credits.     

Betting on the EMS

Two speculative strategies within the European Monetary System are empirically evaluated. The potential profitability of speculating on a currency's devaluation at a realignment crucially depends on being able to predict timing and magnitude of the parity change. Such opportunity has been eliminated from the system since 1983. For the reverse strategy of borrowing low, investing high, the evidence since 1983 suggests significant profitable opportunities for the weaker EMS countries — Belgium, Denmark, France and Italy — unconditional on knowledge of the timing of realignments. We conclude that this is due to a peso problem type of premium.     

Testing Korteweg's rational expectations model for a small open economy

Summary Korteweg extended the Barro, Lucas, Sargent, Wallace type of rational expectations model to a small open economy. This paper tests Korteweg's model with Dutch data. A major error in the specification and estimation is pointed out and corrected: the differenced expected variables are not defined consistently. This error implies that Korteweg's and Bomhoff's previous empirical results on the model are invalid. The test results for the corrected model indicate that this model has to be rejected for The Netherlands. The restrictions implied by an extremely simple empirical alternative are, however, not rejected.I would like to thank Dr. Th.E. Nijman, Professors F. van der Ploeg, W.H. Buiter and J.J.M. Theeuwes and Dr. A. J. de Zeeuw for their stimulus and helpful comments on previous versions of this paper, and Professor P. Korteweg for his open-minded attitude towards this research. Responsibility for the contents remains, of course, with the author. Financial help, from the Stichting Bekker-La Bastide-Fonds and the Stichting A.A. van Beek-Fonds is gratefully acknowledged.     

The age of (Western) European integration: A history of trial and error

Summary In this article the process of post-war European integration has been analyzed against the background of an explanation of the Council of Europe in 1950 that political and economic unification should be developed simultaneously. History shows that in order to realize this objective, the gradualist approach believing primarily in a functional economic integration was preferred to the more radical method of taking immediate steps towards a full political union. The establishment of the European Communities formed the embodiment of the gradualist approach. Though these Communities — and the European Economic Community in particular - have fostered economic and monetary cooperation between the Western European countries, they could not, however, take the necessary steps towards the political ideal due to different views of the member states regarding the process of European integration. With the Treaty of Maastricht, coming into force on 1 November 1993, a new European élan has been born but the question posed by the Council in 1950 still has to be solved. One of the main lessons of European integration in the past fifty years may well be that economic and monetary unification will not proceed without some kind of prompting of a political nature.Historical section of the Econometric Reseach and Special Studies Department of De Nederlandsche Bank NV, Amsterdam. The author is indebted to Willem Boeschotcn, martin M.G. Fase, Nico van Horn, and Joke Mooij for thier valuable comments. All errors and opinions arc mine.     

Differentiation of Skills, Firms’ Recruitment Strategy and Unemployment Benefits in an Efficiency Wage Model

It is well known that the recruitment strategy of firms depends on the state of the labour market. In order to account for this fact, we build a matching model where the differentiation of skills is explicit. Along the line of Salop (1979b) workers and firms are distributed on the same circle and the distance between two points on this circle measures the mismatch between a firm and a worker. Another feature of this model concerns wage setting. In a natural way, wages are subject to the constraint that good workers (i.e. workers who are not too far on the circle) prefer to keep their job. In addition, on a suggestion by Phelps (1992), we assume that workers who quit their job are not eligible to unemployment insurance. Two main results are established. First, the lower the tightness of the labour market the more stringent the requirements of firms are. Second, as a consequence of the incentive constraint, unemployment benefits appear to raise employment.     

The perspective of the SDR's position in monetary reserves on the robustness of optimal portfolio results

Summary To gain an empirical impression of the SDR's attractiveness as a reserve asset, an amended mean-variance analysis is applied to official reserves. The main amendments bear upon the choice of the numeraire and the rejection of both the capital market line and the effective yield's positive marginal utility-frequently assumed in empirical analysis. Comparison of the outcome with that recently obtained by Ben-Bassat shows a large sensitivity of optimal portfolio results for slight differences in assumptions. A second, substantial kind of sensitivity of an asset's position in a portfolio appears to ensue from the influence of other competing functions of reserves.The authors are Professor and Assistant Professor of International Economics, University of Amsterdam, The Netherlands. The research of the second author was financially supported by the Netherlands organization for the advancement of pure research (Z.W.O.), no. 46-108. This research is part of the project Exchange-rate and monetary policy in international dependence. The paper was presented earlier at the conference Research in international finance, Jouyen-Josas, France (June 19 and 20, 1986). Computational assistance by Jeannette Capel, Reiner Gratama, and Martin O. Nijkamp and comments by an anonymous referee are gratefully acknowledged.     

Smoke of leets

Summary This is a review of some of Mrs. Joan Robinson's ideas, and the author's conclusion is that these ideas do not contribute to the present state of economic theory. Her view on international trade is lopsided, her criticism of traditional capital theory goes too far, her refutation of income distribution theory is mainly unfounded. Basically, Mrs. Robinson rejects the notion of relative scarcity of capital; the author believes that this is a useful notion in economics. Moreover, her recent work shows a strong anti-empiricist tendency. If Mrs. Robinson's negative train of thought were to be applied to all concepts of macro-economic theory (total labour force, real national income etc.) these concepts would vanish in thin air. The whole of macro-economics might go up in smoke.     

Substitution assumptions versus empirical evidence in manpower planning

Summary There exist basically two manpower planning methodologies. Firstly, the manpower requirements approach which stipulates that there are needs in the economy for given numbers of qualified persons in the labour force. Secondly, the rate of return approach which focuses on the costs and benefits of producing one extra qualified person at the margin.This paper contrasts the theoretical foundations of the two approaches with particular emphasis on the degree of substitution between different types of educated labour. The empirical evidence on elasticities of substitution is reviewed and it is concluded that the cost-benefit model fits better the real world.I am indebted to Dr. Christopher Dougherty for reading a draft of this paper and making many important corrections.     

Game equilibrium modelling

Summary Non-cooperative game theory has in recent years become one of the main tools in the social sciences and economics. It deals with decision problems of more than one (rational) player. The actions of those players result in outcomes that are the best that may have happened to a player, given the actions of the other players. This is precisely the content of the 'Nash equilibrium' concept. It would be nice when each game had a unique Nash equilibrium. Unfortunately, both non-existence and multiple equilibria occur. An important role in game theory is played by the information available to the players. Among the economic applications are: the Theory of Industrial Organisation, Bargaining and the Economic Theory of Information.Comments by Eric van Damme and Casper de Vries on an earlier draft of this paper have greatly improved the presentation. I have benefited from the comments of the editor and an anonymous referee ofDe Economist. For all omissions, all possible errors and the revealed views in this paper, I alone am responsible.     

Engeland en de Europese Technische Samenwerking

Summary This article attempts to evaluate the possible British contribution to research and development in an enlarged European Economic Community, and formulates the conditions for progress of the British economy when joining the Common Market.In the past the stop-go policy of the consecutive British governments created an atmosphere not conducive to economic growth. In the sixties the so called brain drain and the capital export were extensive. Annual gross investment in relation to gross national product was about 5% lower than in the Common Market countries, and pure capital productivity - represented by the ICOR and corrected for the contribution of labour - was unsatisfactory when measured according to EEC standards. These circumstances led to a considerable underinvestment in the United Kingdom (the author's very crude estimate regarding the period 1958–1968 reaches the figure of about £ 11.300 million), a process that probably will go on in the seventies, as the British income policy meets with huge difficulties. Without skilful and efficient use of the more than sufficiently available British research and development resources -so that the capital productivity can be raised - and without a drastic increase of the investment-income ratio as well as an adequate income policy, the success of the British entry into the Common Market will remain doubtful. Otherwise the export of valuable production factors will continue and unemployment will keep on increasing, so that even participation in the scheduled economic and monetary union by 1978 will be questionable. Even if the above mentioned conditions are fulfilled, considerable capital import may still be necessary to modernise capital stock in Britain, especially in the field of infrastructure, factory building and housing.     

Market Structure and Innovation: A Survey of the Last Twenty Years

A survey of the research on the relationship between market structure and innovation is given. Starting in 1975, the emphasis is on the last two decades, as well as on the most recent developments. Especially on the theoretical front, many important insights have been drawn. These can be applied to antitrust enforcement, or provide the microfoundations for models of economic growth. On the empirical front, research lagged far behind theory. This recently changed with the so called bounds approach which is discussed as a matter of looking into future developments in this area.     

Rational spirits and the post Keynesian macrotheory of microeconomics

Summary The argument that post Keynesian theory rejects rationality and maximization as a basis of agent behaviour and is thus non-rational and lacking micro-foundations is contrasted by reference to Keynes' use of his early work on probability in the General Theory. Instead of presuming rational choice over perfectly known events, post Keynesian theory builds on Keynes' explanation of agents' rational beliefs in uncertain propositions about their knowledge of the world. These rational spirits lead to the recognition of the macro constraints to individual action or a macrofoundations of microeconomics linked to the role of money and to the role of liquidity preference as both a measure of rational belief and a determinant of money prices which equate the rates of return on all existing and newly produced goods. In this equilibrium prices will generally diverge from costs of production, in contrast to perfect competition but in concordance with the post Keynesian microeconomic theories of mark-up pricing.Comments by L. Hoogduin are gratefully acknowledged. He is relieved from any responsibility for my impressionistic presentation of Keynes' views on probability.     

Utility and economics

Summary Although utility has been the central concept in economics, economists have paid relatively little attention to its measurement. Generally, utility is measured indirectly via the revealed preference approach. We discuss problems with this approach and next introduce alternative direct measurement methods. The direct measurement methods are seen to spawn a so-called theory of preference formation, which explains differences in utility functions of different individuals. The similarities of this theory with related theories in sociology and psychology, and various sorts of empirical evidence, are reviewed. The paper concludes with a discussion of the implications of these findings for economic theories.This is a slightly adapted version of my inaugural address at Tilburg University. I thank Tom Wansbeek for his helpful comments.     

Interdisciplinary economics

Summary Starting from Robbins and Hennipman and with the help of Becker and Lindenberg a theoretical framework has been constructed within which the strong points of economics and sociology are combined,viz,. the formal but relatively bare-bones modelling of economics and the often so much richer, in terms of social content, analysis of sociology. This theoretical framework also appears to enable more balanced analyses of the effectiveness and efficiency of legislation and regulation than the kind of law and economics so much in fashion at the moment, which is often not devoid of economism and in whichhomo econornicus still all too often figures as the prototype of man.(Economic Institute/Centre for Interdisciplinary Research on Labour Market and Distribution Issues (CIAV)); Associate of The Netherlands Interdisciplinary Demographic Institute (NIDI) in The Hague and the Interuniversity Center for Social Science Theory and Methodology (ICS). This article is an adapted version of my inaugural lecture.     

Labour hoarding in Dutch manufacturing industry

Summary Comfronting strong output fluctuations, companies are in no position to adjust their labour volume instantly to the technically efficient level. Because of that, they may find themselves with an internal labour reserve at one moment, and be short of labour at another. This phenomenon is called labour hoarding. In this article we propose a new method for the measurement of labour hoarding and apply it to the Dutch manufacturing industry. The results suggest that in the period 1972 to 1982, labour surpluses in that sector varied between five and fifteen percent of employment. Labour shortages appear to have been minor in the same period. Output uncertainty and real wage costs are supposed to be the main causes of the discrepancy between actual and technically efficient employment. Under this assumption an employment function is derived and fitted. The results are in accordance with the theoretical model on which the employment function was based.The author is attached to the Netherlands Economic Institute, Rotterdam.Based on the author's dissertation,Omvang en oorzaken van labour hoarding, Rotterdam, 1987.