Forecasting the Educational Structure of Occupations: A Manpower Requirement Approach with Substitution

ABSTRACT: Manpower requirement forecasts are usually based on the assumption that discrepancies between supply and demand do not lead to adjustment processes at the labour market. We show, however, that even if the market mechanism functions completely, manpower requirement forecasts remain important information. On this basis, a manpower requirement approach is developed which incorporates the possibility of substitution processes at the labour market.     

Labour Supply: Which Theory? A Critical Empirical Assessment

ABSTRACT The aim of this paper is to test econometrically a number of models of labour supply which fall within the neoclassical and Keynesian theories, in an attempt to obtain indications of validation of the theories themselves. The econometric assessment, carried out with a cohort approach to labour supply, shows that Italian female participation rates react well to the variables belonging to both the neoclassical versions of models — with the exception of the version regarding intertemporal choices — and the Keynesian ones. Both in terms of testing for the selection of alternative regression models, such as those for non-nested hypotheses and for selection of regressors, and of “internal” investigation within the estimated models, the results obtained are not without ambiguity. They therefore leave open the question as to which theory can explain labour supply in the most significant and appropriate way.     

Descrepancies between Supply and Demand and Adjustment Processes in the Labour Market

Changes in demand and supply in segments of the labour market will affect the labour market position of workers with an educational background in a related field of study. In one economic tradition such discrepancies between supply and demand are thought to lead to unemployment in the case of excess supply and to unfilled vacancies or skill shortages in the case of excess demand. The other neo‐classical oriented tradition expects wage adjustments to take fully account of these labour market imbalances, leading to higher wages for studies with excess demand and lower wages in case of excess supply. In practice the labour market might, on the one hand, be more flexible than suggested by the first approach, but on the other hand adjustment might be incomplete and not only wages but also other aspects of the employment relationship might be affected by a friction between supply and demand. This study examines the relationship between discrepancies between labour demand and supply on the one hand and manifestations of these tensions in the labour market experience of school‐leavers on the other hand. To investigate this relationship, a random coefficient model has been used, which allows for different adjustment processes for the various educational types, but still makes full use of all the information available in the data. The analyses provide insights about the importance of different adjustment processes and their complementarity and substitutability. We show that on average, supply surpluses lead to pressure to accept jobs at a level which is lower than the school‐leavers educational level, jobs with relatively low wages, and jobs with part‐time contracts. A direct link between supply surpluses and unemployment is only found for a few specific fields of study. Unemployment seems to occur mostly when school‐leavers do not take temporary jobs or jobs below their educational level in case of excess supply.     

Regional Labour Market Adjustment: Are Positive and Negative Shocks Different?

This paper analyses regional labour market adjustment in the Finnish provinces during 1971–96. It investigates the interrelations of employment, unemployment and labour force participation to examine how a change in labour demand is adjusted to. The study questions the usual assumption that positive and negative shocks evoke similar adjustment processes. Instead, we test for the possibility that the effects of positive and negative shocks are asymmetric. The analysis reveals that there is little asymmetry in the adjustment to region‐specific labour demand shocks, but adjustment to total (region‐specific plus common component) shocks displays more asymmetry. The region‐specific component of a labour demand shock has short‐lived effects on unemployment and participation, and its effect on employment is very small but permanent [persistent?]. Initially, most of the fall in employment is absorbed by the unemployment and participation rate, but after a few years migration plays a larger role in the adjustment process.     

The Effect of Trade on Employment and Wages in Italian Industry

The paper analyses the labour market impact of international trade on the Italian manufacturing sector. Using data for a panel of manufacturing industries the effects of trade‐induced changes in sales on employment and wages are investigated. The evidence suggests that the industry adjustment to demand shocks took place mainly through employment changes. However, increased exposure to foreign competition had a small effect on the Italian labour market, while technological change seems to have a major role in explaining the increase in unemployment.     

The Pace of Job Creation and Destruction,Cyclical Shocks and Employment Dynamics

This paper investigates (un)employment dynamics in response to labour demand shocks using a small empirical flow model for the labour market in The Netherlands. The model explicitly takes account of the propagation of shocks through the various duration classes of unemployment and allows for duration dependence in the state of unemployment. A sensitivity analysis shows that 1. congestion in the matching process due to the increase in the pace of job creation and destruction may have substantial effects on (un)employment dynamics; 2. the effects depend very much on the initial pace of labour market dynamics and they are larger when the initial pace is low; 3. the labour market may be out of its equilibrium for quite a long time after a shock occurs; 4. fluctuations in the pace of job creation and destruction only lead to unemployment persistence in the model when the escape probability from long term unemployment is zero; otherwise, the economy returns to its original equilibrium, albeit with long adjustment lags in the case that the initial pace of structural change and/or the escape probability for long term unemployed is low.     

Evaluating the Dynamic Effects of Active Labour Policies in Italy

Abstract. This paper analyses whether active labour market policies (ALMPs) have differing effects on unemployment and employment dynamics according to the particular region in which they are implemented. To this end, it analyses alternative theoretical and econometric models thought to capture the possible effects of active labour market policies on labour force dynamics. The econometric methodologies implemented are the generalized method of moment (GMM) and the panel vector autoregression (P‐VAR). The evidence yielded by the GMM models suggests that the effects of different ALMPs on unemployment are dissimilar across the Italian regions. It follows that some active programmes are likely to have a greater effect in the South than in the North. The results of the P‐VAR models estimated are synthesized by impulse response analysis and forecast error variance decomposition. The impulse response analysis suggests that an increase in total ALMP gives rise to: (i) a decrease in the unemployment rate; and (ii) a significant increase in labour force participation. More interestingly, the results obtained from the error variance decomposition analysis show that unemployment movements are not driven by shocks in the ALMPs and that, especially in the northern regions, atypical contracts shocks account for a substantial portion of unemployment dynamics.     

Modelling Labour Demand Dynamics beyond the Frictionless Environment

Abstract. In this study we develop a simple econometric model for labour demand dynamics by explicitly considering deviations from the standard frictionless economic environment. In particular, we explore the potential effect on labour demand of capital market imperfections, labour market institutional rigidities in the form of union power, and the impact of uncertainty. In addition, in the presence of uncertainty, adjustment costs and irreversibility emerge as an important factor that introduces an option value of waiting. According to our results, leverage exerts a direct negative impact on employment dynamics indicating that capital market imperfections are indeed present. Moreover, leverage is found to also affect the adjustment process of employment. Finally, we document asymmetric effects of frictions on labour demand across different size groups that imply a higher vulnerability of small and medium sectors with respect to debt levels. Uncertainty exerts a significantly negative impact on labour demand, which is compatible with presence of partial irreversibility of employment decisions. Finally, unions over and above their effect via higher wages are positively related to employment, a finding that is indicative of their pursue for job security.     

Labour Force Transitions among Married Women in the USA

This paper describes the patterns of labour market transitions for a cohort of married women in the USA drawn from the National Longitudinal Survey and observed between 1968 and 1991. The empirical analysis of labour market movements is motivated by human capital theory augmented by demographic and life-cycle considerations. These movements are investigated by estimating competing risk models of labour force spell duration. The results show that the determinants of spell lengths and the determinants of the reasons for spell terminations vary across labour market states. More importantly, both the labour market state in which an individual is observed over her work cycle and the labour market state to which she moves are relevant in shaping her spell length and her tradeable characteristics in the labour market.     

投资机会变动与风险收益关系实证研究

应用跨期资本资产定价模型研究股市投资机会变动时的风险收益关系和跨期风险对冲策略。以25个规模-账面市值比组合以及扩展组合作为检验资产,以经济、情绪和市场指标作为状态变量反映投资机会,以DCC-MVGARCH方法估计的资产超额收益与市场超额收益的条件协方差衡量市场风险,以DCC-MVGARCH方法估计的资产超额收益与状态变量新息的条件协方差衡量跨期风险,应用面板回归方法检验资产超额收益与风险的关系。研究结果表明,在单状态变量中,货币供应增长率、房地产投资增长率、宏观经济景气指数、规模溢价等新息降低,投资机会出现不利变动,与这些新息负相关的资产能对冲投资机会的不利变动;存贷差增长率、利率、股市波动等新息增加时,投资机会出现不利变动,与这些新息正相关的资产能对冲投资机会的不利变动;各模型具有良好的解释能力,其中规模溢价、股市波动和货币供应的解释能力较高。还对多状态变量进行检验、比较,并提供了相应投资策略。     

Is Imperfect Competition in the Product Market Relevant for Labour Markets?

Recent research in macroeconomics emphasises the importance of imperfect competition in the product market for labour market outcomes. We investigate one aspect of this issue by specifying a dynamic labour demand model where firms face different degrees of competition in the product market and test its predictions for 299 US manufacturing industries. We find that the long-run equilibrium level of industry employment as well as the speed of labour demand adjustment decreases with market power. Our results imply that imperfect competition in the product market explains part of the observed labour market rigidities and also sheds new light on two “stylized facts” in industrial organisation, the observation of procyclical movements in productivity and price–cost margins in concentrated industries.     

Interpreting Gaps in Manpower Forecasting Models

In manpower forecasting labour market developments are analysed in terms of shortages and surpluses. Such an approach seems to neglect the flexibility of the labour market, present in most economic labour market models. It is shown that an appropriate interpretation of gaps in manpower forecasting does not exclude a full functioning of the market clearing mechanism.     

Unemployment and the Composition of Labour Slack: An International Comparison

The present statistical apparatus allows us to construct a single indicator of the degree of non-utilisation of labour resources that mitigates the shortcomings of the traditional unemployment rate. This paper defines a method to measure aggregate labour slack, and applies it to post-1973 data for four countries: Canada, the Netherlands, Sweden and the U.S.A. The estimates take into account non-utilised labour resources due to unemployment, to changes in the number of hours actually worked and to changes in registered labour force participation. Since changes in and the manipulation of working time schedules on the one hand, and of labour supply on the other, have become more frequent over the last few decades, it is highly relevant to investigate international and intertemporal differences in the non-utilisation of labour resources by means of a ratio that accounts for these changes. Unemployment is ill-suited for this purpose, and therefore a labour slack estimate is constructed, which takes working time developments and changes in labour force participation into consideration. The estimate is cyclically more sensitive and more internationally comparable than the traditional unemployment rate.     

Labour Policy in the Federal Republic of Germany: Challenges and Concepts

ABSTRACT: This paper describes how German labour policy, both employment policy and active labour market policies, has developed between 1974 and 1987. Government intervention for full employment in a welfare state, a cooperative system of industrial relations, an active labour market policy, and a comparatively efficient system of vocational and adult education did not prevent the loss of full employment in 1974. But persistent labour market slack until today has not fundamentally changed the climate of relative political and social calm. The basic concepts, programmes and specific measures of labour policies pursued in the FRG are surveyed with special reference to their costs and effects on employment and the structure of unemployment. The challenges to labour policy stem from three complete business cycles around a slightly falling trend in employment and the bad prospectives of the German labour market until the year 2000. Four major measures of labour market policy now reduce registered unemployment by about 400,000 in the mid 1980s. Total costs of unemployment amounting to 57 billion DM per year offer financial alternatives to create jobs and to reduce working hours. Finally, actual proposals under discussion in Germany are examined in order to combat unemployment in a determined commitment to full employment immediately.     

Employment Spells and Previous Labour Market History

ABSTRACT: In this paper the author analyses the influence of the past labour market history of an individual on the length of employment spells he will experience. Most empirical works emphasize the so called Markov model, which implies that the probability of an individual changing state depends only on the state currently occupied. Using data on the labour market histories of a sample of unemployed persons, we specify and estimate a reduced form model where job separation rates arc a function of the entire labour market history and of variables related to personal characteristics and labour market conditions. The empirical analysis supports the claim that transition probabilities are related to past labour market history.     

How Much Does Hiring and Firing Cost? Survey Evidence from a Sample of Italian Firms

We analyse the Italian labour market, which is typically considered to be highly regulated. We focus on the costs imposed on firms by the institutional environment in which they operate, and on the adjustment strategies that they pursue as a result. We have followed two complementary approaches: the analysis of the development of the laws relating to hiring and firing, together with a set of interviews of 61 manufacturing firms. This also allows us to quantify the extent of turnover costs on the total labour costs. Hiring costs, which include recruiting and training, range between 2.0 and 2.6 months of labour costs; firing costs range from less than half a monthly labour cost to 20 months of labour costs in cases of conflict.     

The Dark,and Independent,Side of the Italian Labour Market

Abstract. This paper presents an empirical investigation of the two faces of the Italian labour market, the dark and the regular. Results from ‘exhaustive’ VAR/VEC models suggest that there are no connections (causal relationships, feedback, contemporaneous correlation) between them. In this sense, we could correctly refer to undeclared work as an ‘independent’ side of the market. I interpret these results as providing empirical support for the ineffectiveness of labour policies in converting black economy employment into regular over the last two decades.     

Analysis of Managerial Experience: Integrating Career Analysis with Labour Market Dynamics

The article argues that there is a need for a greater emphasis on information relating to the quality of labour supply, particularly the nature of managerial experience. The rationale is based on the organizational and industry changes which alter patterns of experience and create new forms of human capital. At the heart of the argument is the valuation of stable labour market dynamics, that is, patterns which remain constant. This is contrasted with the ethos of change which, it is suggested, contains a dangerous element of exaggeration. An attempt is made to integrate qualitative career analysis with new forms of labour market analysis. Two models of learning by experience are introduced and examples of relevant techniques of measurement are described.     

A Structural Approach to the European Labour Market

The structure of the European labour market is highly differentiated by geo-graphical area. If the 1992 integration is likely to induce short-medium term adjustment effects on employment, these will mostly affect regional labour markets. Negative adjustments will follow different distribution patterns, probably exacerbating current regional disequilibria. On the other hand, still little known are the geographical features of the European economic, social and production structures. Although many studies have recently concentrated on the analysis of local labour markets, few of them have addressed the issue of Community regions. Through multivariate and cluster analyses of structural data on regional labour markets, the paper offers a confirmation of the explanatory power of local market analysis, as applied to the European area. The structural features of each elementary area are captured by three factors only that allow the construction of a coherent classification of EEC regions in four major clusters. This classification is used to identify the “weak areas” that, after a reconsideration in unified terms of European cooperation policies, should be the object of new development interventions.     

A Stock-Flow Model to Analyse and Forecast Labour Market Variables

ABSTRACT: In confronting problems of employment and unemployment, students of the labour market, and economists in general have focused mainly on the determination of the level of such variables. Much less attention has been paid to such questions as: how many persons have entered the area of employment and the labour force in various time periods, and how many have exited; their sex and age distribution; and the determinants of the level and structure of flows amongst the various labour market conditions. Yet it appears superfluous to underscore the relevance of such questions. To illustrate, suffice it to recall that in Italy, the present level of employment is essentially the same today as it was in 1961‘; but this has not prevented whole generations of young people from 'stably’entering the employment area, albeit with varying degrees of difficulty in different periods. As for the numerous statistical surveys of labour market flows in a range of countries, and as for the works of job search theorists², it should be observed that such surveys and analyses essentially concern conjunctural phenomena. Consequently, these authors have paid no attention to the distinction between short-run turnover and generational turnover, or to the extremely singular characteristics of the statistical data on flows. An attempt to construct labour market models that present an integrated version of the 'structural’aspects of the market in terms of stock and flows is therefore lacking. The present study sets forth various objectives and is divided into two parts. In the first, an analysis of several controversial terminological aspects of the concepts of stock and flow is presented, and an attempt is made to point out those theoretical structures which have been responsible for the long-prevailing neglect of the labour market flows, particularly long-run flows. Then the problem of defining the concepts of short-run and generational turnover will be confronted in light of an analysis of the statistical methods used in the surveys; finally, a methodology for measuring generational flows is proposed. In the second part of the paper a model based on generational flows, as previously defined, will be presented together with a computational procedure capable to produce long run estimates of alternative scenarios of labour demand and supply and of the structure of employment by sex and age. A brief summary of some of the empirical results obtained applying our model and forecasting procedure to the Italian labour market will also be discussed in the final part of the paper.