"The matching of likes is a frequently observed phenomenon. However, for such assortative matching to arise in a search model, often implausibly strong conditions are required. This paper shows that, once signals are introduced, a search model can generate even perfect assortative matching under...

"We revisit the puzzling finding that labour market performance appears to deteriorate, as suggested by negative time trends in empirical matching functions. We investigate whether these trends simply arise from omitted variable bias. Concretely, we consider the omission of job seekers beyond...

For instrumental-variable estimation using binary instruments, we offer simple methods to obtain policy-relevant insights beyond local average treatment effects. We demonstrate the methods by evaluating an element of choice introduced into active labour market policy in Germany by a reform in...

When agents do not know where to find a match, they search. However, agents could direct their search to agents who strategically choose a certain signal. Introducing cheap talk to a model of sequential search with bargaining, we find that signals will be truthful if there are mild...

In a model of sequential search with transferable utility, we allow heterogeneous agents to strategically choose a costless signal of their type. Search frictions are included as discounting and explicit search costs. Through signals, if only they are truthful, agents can avoid the...

When agents do not know where to find a match, they search. However, agents could direct their search to agents who strategically choose a certain signal. Introducing cheap talk to a model of sequential search with bargaining, we find that signals will be truthful if there are mild...

"Seit dem Jahr 2003 wird der Zugang in Maßnahmen der beruflichen Weiterbildung durch die Arbeitsagentur über die Vergabe von Bildungsgutscheinen gesteuert. Diese Studie diskutiert zunächst aus theoretischer Sicht die Prozesse bei der Vergabe und Einlösung. Sie legt zudem erste Befunde zu der...

"In der Studie werden die Auswirkungen von Unsicherheiten auf dem Arbeitsmarkt auf die Entscheidung für oder gegen ein zweites Kind bei Müttern und Vätern in Deutschland analysiert. Mit Daten des sozioökonomischen Panels werden Piecewise-constant-exponential-Modelle für die Entscheidung zum...

"In the last years the analysis of flow figures turned out to highly informative for labour market research and policy advice. Among researchers it is a well known fact that cross-sectional information about labour market is not sufficient to understand ungoing development. A pure sequence of...

"The paper analyses the relationship between individual tenure and the application of collective contracts at the firm level, using a multi-level model and a German linked employer-employee data set for the years 1990, 1995 and 2001. The main result is that elapsed tenure is longer in firms...