Hysteresis in unemployment: Fact or fiction?

A stylized fact of European unemployment dynamics is one of extreme persistence and possible unit root behavior. This has led to a major reconsideration of the natural rate paradigm. We apply the Kalman filter to estimate the natural rate of unemployment for Germany and France. When the moving natural rate model is tested against the alternative of a unit root process, the unit root hypothesis is resoundingly rejected.     

Unemployment,long-term employment relations and the determination of unit labour cost growth in US manufacturing industries

This paper examines the effect that unemployment and long-term employment relations exert on the determination of unit labour costs. The paper proceeds in three sections. Section one analyses the relationship between labour market conditions and unit labour costs by developping a simple model of a firm that relies upon dismissal threats to elicit work effort. The comparative static properties of this model suggest that a tightening of labour markets may result in an increase in unit labour costs. In addition, it is argued that the labour market disequilibrium that occurs at full employment levels of unemployment will likely result in an increase in the growth rate of unit labour costs. The second section of the paper reviews diverse theories of long-term employment relations (LTERs), each of which suggest that the presence of LTERs ought to reduce the effect that labour market conditions exert on unit labour costs. The third section of the paper presents empirical estimates of the effect unemployment and LTERs exert on unit labour costs. The central empirical findings can be briefly summarized. First, movements towards full employment increase the growth rate of wages, reduce the growth rate of labour productivity and increase the growth rate of unit labour costs. Secondly, where long-term employment relations are prevalent, the effect of unemployment on wage, labour productivity, and unit labour cost growth is diminished. The paper concludes by discussing the implications these findings have for effort regulation models and the macroeconomic foundations of microeconomic labour market structures     

Flexibility and Growth

After two decades of theoretical discussion and application of labour policies aimed at flexibility, ever-spreading unemployment in Europe has compelled some official institutions to admit that the 'rigidity' of the labour market does not suffice to account for the different trends in employment displayed by Europe and the United States. In this paper, we focus on the role played by differentials in income growth. After briefly reviewing the explanations of European unemployment based on labour market rigidity and their respective weaknesses, we look at the relationship between growth and employment, concluding that there are grounds for maintaining that the causes of Europe's higher unemployment reside mainly in its lower rate of growth.We therefore investigate the reasons that may be responsible for a more stringent macroeconomic constraint on European growth.We conclude that if a lack of growth is at the root of European unemployment, then merely dismantling labour market institutions, and replacing them with a more flexible system of industrial relations, will not only fail to produce the expected results but may also have negative effects, in both the social and productive structure.     

ARE LABOUR FORCE PARTICIPATION RATES NON‐STATIONARY? EVIDENCE FROM 130 YEARS FOR G7 COUNTRIES*

This paper applies a unit root test with a non‐linear threshold to examine whether labour force participation rates are mean reverting for G7 countries using annual data over a 130 year period. We find some evidence of mean reversion for just over half the sample; however, this result is sensitive to regime shifts. We also examine whether the labour force participation rate is trend reverting through employing a lagrange multiplier (LM) unit root test with one and two structural breaks in the intercept and slope. The LM unit root test provides no additional evidence in support of stationarity. On the basis of the unit root tests for mean reversion we conclude that there is at best mixed evidence that long‐term changes in unemployment rates translate into long‐term changes in employment rates and that the unemployment rate is a useful indicator of joblessness.     

A disequilibrium model of real wages,employment and unemployment for the U.S.A. during 1930–1965

The well known Lucas-Rapping (1969, 1970) U.S. Labour market model has been estimated with a simple disequilibrium estimation method. Neither the wage rate nor the employment level are found to adjust to clear the labour market within the unit time period. The elasticity of labour supply in the short run is found to be high which is consistent with the recent theories of real business cycle. Adjustment in employment towards equilibrium is faster than the adjustment in the wages. The rate of unemployment is satisfactorily explained by the excess supply rate without the need for the lagged unemployment rate. Thus our unemployment equation is superior to the Lucas-Rapping equation based on the equilibrium framework.I am grateful Professors J. W. Nevile, V. K. Srivastava, the editor of this Journal, Professor Baldev Raj and two referees for their comments on an earlier version of this paper. I wish to thank Kris Corcoran for her excellent research assistance. The research contained in this paper is financed by a grant from the Faculty of Commerce and Economics.     

Wage,productivity and unemployment: microeconomics theory and macroeconomics data

We confront microeconomics theory with macroeconomics data. Unemployment results from two main micro-level decisions of workers and firms. Most of the efficiency wage and bargaining theories predict that over the business cycle, unemployment falls below its natural rate when the worker’s real wage exceeds the reservation wage. However, these theories have weak empirical support. Firm’s decision predicts that when the worker’s real wage exceeds the marginal product of labour (MPL), unemployment increases above its natural rate. Accounting for this microeconomic decision helps explain almost all the fluctuations of US unemployment.     

HYSTERESIS HYPOTHESIS IN UNEMPLOYMENT AND LABOUR FORCE PARTICIPATION RATES: EVIDENCE FROM AUSTRALIAN STATES AND TERRITORIES *

This article simultaneously investigates the hysteresis hypothesis of unemployment and labour force participation using regional level data in Australia. The conventional univariate and panel unit root tests indicate that the hysteresis hypothesis cannot be rejected for most of the regions in Australia. To further confirm if the hysteresis finding in unemployment and labour force participation results from not considering structural breaks. We employ a panel stationarity test recently developed by Carrion‐i‐Silvestre et al. (2005 ), which considers multiple structural breaks and cross‐sectional dependence. The test results lend support for unemployment hysteresis and participation regime‐wise stationarity. Accordingly, the findings imply that a temporary shock may have permanent effects on the unemployment rate but not on labour force participation in Australia and thus call for policies aimed at improving the adjustment mechanism in unemployment.     

Keynes,investment, unemployment and expectations

In Keynes’ General Theory, investment determines effective demand, which determines unemployment and the labour market plays a negligible role. In New Keynesian models, labour market institutions determine the natural rate of unemployment and the speed at which unemployment adjusts to it. Investment is mostly ignored as a key variable behind the problem of high unemployment, despite a strong empirical association between investment and unemployment. We discuss the evolution of the ‘Keynesian’ model, and how in the process of domesticating the General Theory, the central relationship between unemployment and investment and the role of the state of confidence was bred out of the model. We then present some evidence of the centrality of investment and expectations to the long‐term evolution of unemployment in OECD countries. We also argue that recent results in finance, which find that individuals do not behave rationally and, moreover, that there may be no basis for rational calculation, provides support for Keynes’s notion that animal spirits play a central role in investment.     

The portfolio behaviour of pension funds in the US: an econometric analysis of changes since the new regulation of 1974

In most Western countries, the rate of unemployment has shown a rising trend over the last decades. One of the standard explanations for this is that the ‘natural’ rate of unemployment has risen. In order to investigate this hypothesis, a simple demand–supply model of the Finnish labour market was constructed and estimated. It is proposed that if the development of the unemployment rates can be explained is such a traditional model framework, this would suggest that changes in the ‘natural’ rate are not, after all, the crucial reason for the increasing unemployment rates.

According to the results, the simple model was able to account for the changes in the unemployment rate very well. Furthermore, they seem to support a traditional Keynesian view of the problem, emphasizing output level and labour productivity as the main explanatory variables. Indirectly, it can be concluded that there seem to be no clear signs of a rising ‘natural’ rate of unemployment.     

Deriving natural rates of unemployment for sub-national regions: the case of Canadian provinces

In order to pursue informed stabilization policies, it is vital for policy-markers to have estimates of how much of the total unemployment rate can be classified as cyclical rather than natural unemployment. This paper describes a method for generating regional natural-rate estimates and applies this method to the case of Canadian provinces. Results indicate that unemployment insurance generosity and relative minimum wages play an important role in determining natural unemployment rates in Canadian provinces. One of the enduring characteristics of the Canadian labour market has been substantial and peresistent unemployment rate disparities across provinces. The results of this study indicate that these disparities are primarily explained by differences in provincial values of structural variables such as unemployment generosity and by differences in provincial sensitivities to these structural variables. A furher result is that variation in cyclical unemployment rates is substantially less in the traditionally high unemployment region of Atlantic Canada than it is in the traditionally low unemployment province of Ontario. This result implies that the most appropriate policies to reduce unemployment in Atlantic Canada are not regionally-applied expenditure policies but rather policies designed to reduce structural distortions in the provincial labour markets.     

Labour market institutions and unemployment: an international panel data analysis

This paper deals with the effects of labour market institutions on unemployment in a panel of 19 OECD countries for the period 1960–2000. In contrast to many other studies, we use long time series and analyse cyclically adjusted trend values of the unemployment rate. Our novel contribution is the estimation of panel models where we allow for heterogeneous effects of institutions on unemployment. Our main results are, first, that on the average tighter employment protection, a higher tax burden on labour income and a more generous unemployment insurance system increase, whereas a higher centralization of wage negotiations decreases unemployment, and secondly, that the magnitude of the effects of institutions differs considerably between countries.     

Unemployment Hysteresis in Australian States and Territories: Evidence from Panel Data Unit Root Tests

This article tests for hysteresis by applying panel data unit root tests to quarterly unemployment rates for Australian states and territories between 1982:2 and 2002:1. Panel tests proposed by Levin and Lin (1992) using ordinary least squares and O'Connell (1998) using feasible generalised least squares (which assume that under the alternative hypothesis of stationarity, all labour markets revert to the natural rate at the same speed) provide evidence in support of the natural rate hypothesis. However, the panel test proposed by Im, Pesaran and Shin (1997), which does not assume that all cross‐sectional units converge towards the equilibrium value at the same speed under the alternative and is therefore less restrictive than the other two panel tests, finds evidence of hysteresis. Given the advantages of the Im et al. (1997) test over the other two panel tests the results can be interpreted as being consistent with the existence of hysteresis in unemployment     

Dynamic persistence in the unemployment rate of OECD countries

Previous studies use a variety of increasingly advanced unit root tests to determine whether Blanchard and Summers (1986) hysteresis theory of unemployment or the classical ‘natural’ rate theory of Friedman (1968) and Phelps (1967, 1968) is most relevant for a given country. However these tests all specify a unit root under the null hypothesis against a stationary alternative, such as in the paper by Lee and Chang (2008), making the two theories of unemployment mutually exclusive over the sample period. This paper moves away from this dichotomy by allowing for switches between hysteresis and the natural rate theory using the recently developed test of Leybourne, Kim and Taylor (2007). We find that in countries like the United Kingdom, the natural rate theory is detected in the post-World War Two period of stabilisation: the time leading up to the seminal works of Friedman and Phelps. Hysteresis is found over the First World War and Great Depression periods, and in the period from the 1970s; a time characterised by rising trade union power. We also compute numerical measures of persistence using grid-bootstrap estimates of the autoregressive parameter, following Hansen (1999).     

The market for labour in Israel

Using annual observations for 1960–89, a complete economic model of the Israel labour market is estimated in which the demand for labour varies inversely with real wages, participation varies directly with the real wages and real wages are explained by a phillips curve in which the natural rate of unemployment is a variable. The model suggests that while wages are far from flexible, unemployment shocks die away fairly rapidly. we were unable to model the behaviour of public sector pay and employment.     

Hysteresis in the development of unemployment: the EU and US experience

We examine hysteresis in EU and US unemployment by panel unit root tests. First generation tests indicate that unemployment is stationary. Second generation tests show mixed results. Idiosyncratic components are stationary in the US. A unit root in the US common component depends on the starting point of the sample. While the common component is nonstationary over the whole period, it is mean-reverting after initial observations are dropped. Hysteresis in EU unemployment is attributed to idiosyncratic, but not to common components. The findings might reflect a different regulation of labour markets and a lower degree of migration in the EU.     

Testing for unemployment hysteresis in nonlinear heterogeneous panels: International evidence

Nonlinear behavior of unemployment is well documented in the literature, and thus linear unit root tests may not be appropriate in this case. This paper tests for hysteresis of unemployment for 29 OECD countries through the use of a new nonlinear panel unit root test developed by Ucar and Omay (2009). The test examines the joint null hypothesis of linearity and a unit root against the alternative hypothesis of nonlinear stationarity. Large power gains are achieved by both combining cross-sectional information with nonlinearities in the data. In addition, after the unit root null being rejected, we use a sequential panel selection method suggested by Chortareas and Kapetanios (2009) to classify the whole panel into a group of stationary countries and a group of non-stationary countries. The empirical findings show that the nonlinear panel test gives strong evidence in favor of the natural rate hypothesis of unemployment for 23 of 29 OECD countries, in contrast to those obtained by Chang's (2002) linear panel test that 17 countries display evidence of stationary unemployment.     

Labour-market institutions, (un)employment,wages, and growth: theory and data

We analyse the implications of labour-market institutions on wage inequality in favour of skilled labour, on relative unemployment of unskilled labour, and on the economic growth rate in two clusters resulting from 27 OECD countries: Cluster 1, closely related with the Anglo-Saxon model, and Cluster 2, dominated by the Continental-European model. By linking the unskilled wage to the skilled one in Cluster 2, due to the indexation of social benefits to per-capita income, we accommodate the observed paths of the three variables in both clusters between 1991 and 2008: Cluster 1 presents a higher wage inequality in favour of skilled labour, a lower unemployment of the unskilled labour, and a better economic growth rate.     

The NAIRU reconsidered: why labour market deregulation may raise unemployment

According to the mainstream theory of equilibrium unemployment, persistent unemployment is caused mainly by ‘excessive’ labour market regulation, whereas aggregate demand, capital accumulation and technological progress have no lasting effect on unemployment. We show that the mainstream non‐accelerating inflation rate of unemployment (NAIRU) model is a special case of a general model of equilibrium unemployment, in which aggregate demand, investment and endogenous technological progress do have long‐term effects. It follows that labour market deregulation does not necessarily reduce steady‐inflation unemployment. Theoretically, if the decline in real wage growth claims owing to deregulation is smaller than the ensuing decline in labour productivity growth and in the warranted real wage growth, then in that case steady‐inflation unemployment may increase. Empirical evidence for 20 Organisation for Economic Cooperation and Development (OECD) countries (1984–1997) indicates that the impact of labour market deregulation on OECD unemployment is zero, and possibly negative (causing a higher rate of unemployment).     

Hysteresis and sluggishness in Portuguese unemployment, 1977–88

The phenomenon of unemployment persistence led to the development of alternative theories of unemployment. Among these the ‘hysteresis’ concept by Blanchard and Summers (1987) received a wide interest. Based on this notion we developed a generalized model that nests Blanchards and Summers' theory. Using this framework we conducted an empirical investigation for the Portuguese labour market (1977–88). The results obtained point towards the existence of labour demand sluggishness, wage inertia and unemployment hysteresis. The model also suggests the existence of a rather inelastic labour demand curve.     

Capital Expansion, Endogenous Growth and Equilibrium Unemployment

A model is developed, which captures the interactions of unemployment and economic growth in general equilibrium. The economy evolves along a correct-expectations equilibrium path exhibiting endogenous job rationing, and productivity growth is driven by installation of new capital. Under the maintained hypothesis that the elasticity of substitution between capital and labour is less than unity, unemployment benefits are shown to shift up the whole path of equilibrium unemployment, leaving the economy with a higher natural rate of unemployment and lowering the long-run growth rate permanently. Investment tax credits financed by lump sum taxes on total income are capable of lowering the natural rate and raising the economy's growth rate.