In this paper, we estimate matching functions using disaggregate data. We find strong support for the matching approach, with most specifications implying slightly increasing returns to scale. This finding does not appear to arise from our inclusion of additional controls or from the level of disaggregation, and so we conclude that earlier findings of constant returns in the US may be due to the various approximations needed to construct an aggregate time series. We also find evidence of endogenous job competition between the employed and nonemployed, so that the estimated parameters from a matching function cannot be interpreted as structural parameters.

A theoretical and empirical examination of wage differentials findsthat traditional theories of competition do not explain why workers with identical skills are paid differently.

Most governments in today's market economies spend significant sums of money on labour market programmes. The declared aims of these programmes are to increase the re-employment chances of the unemployed. This book investigates which active labour market programmes in Poland are value for money and which are not. To this end, modern statistical methods are applied to both macro- and microeconomic data. It is shown that training programmes increase, whereas job subsidies and public works decrease the re-employment opportunities of the unemployed. In general, all active labour market policy effects are larger in absolute size for men than for women. By surveying previous studies in the field and outlining the major statistical approaches that are employed in the evaluation literature, the book can be of help to any student interested in programme evaluation irrespective of the paticular programme or country concerned.

Die Fragen, wie der Arbeitsmarkt funktioniert und welchen Einfluss die Politik ausüben kann, sind Dauerbrenner in der gesellschaftlichen und politischen Debatte. Das hierzu nötige Wissen speist sich aus der Arbeitsmarktforschung, die häufig Impulse aus dem Alltagsgeschäft der Arbeitsmarktpolitik bekommt. Umgekehrt laden Fortschritte in der Methodenentwicklung und der Datenerschließung die Arbeitsmarktpolitik dazu ein, neue Fragen aufzuwerfen, die bisher nicht beantwortet werden konnten. Michael Stops greift solche Entwicklungen auf und fokussiert drei Themenbereiche: - Berufliche Mobilität und Effizienz des Arbeitsmarktausgleichs - Die Entwicklung der Effizienz des Arbeitsmarktausgleichs vor, während und nach den Jahren der deutschen Arbeitsmarktreformen 2003-2005 auf beruflichen Teilarbeitsmärkten - Die Wirkung des flächendeckenden Mindestlohns in Großbritannien auf die Beschäftigung 1999-2012

This book focuses on the modeling of the transitions in and out of unemployment, given the stochastic processes that break up jobs and lead to the formation of new jobs, and on the implications of this approach for macroeconomic equilibrium and for the efficiency of the labor market. An equilibrium theory of unemployment assumes that firms and workers maximize their payoffs under rational expectations and that wages are determined to exploit the private gains from trade. This book focuses on the modeling of the transitions in and out of unemployment, given the stochastic processes that break up jobs and lead to the formation of new jobs, and on the implications of this approach for macroeconomic equilibrium and for the efficiency of the labor market. This approach to labor market equilibrium and unemployment has been successful in explaining the determinants of the "natural" rate of unemployment and new data on job and worker flows, in modeling the labor market in equilibrium business cycle and growth models, and in analyzing welfare policy. The second edition contains two new chapters, one on endogenous job destruction and one on search on the job and job-to-job quitting. The rest of the book has been extensively rewritten and, in several cases, simplified.