This paper develops a labour market matching model with heterogeneous firms, on-thejob search and referrals. Social capital is endogenous, so that better connected workers bargain higher wages for a given level of productivity. This is a positive effect of referrals on reservation wages. At the...

Sociological as well as economic research is interested in the role of social networks in staffing processes. Empirical studies usually consider them as relevant from the job seekers' point of view. But there is only little knowledge of firms' perspective on this issue. This paper contributes to...

Was zeichnet schwierige Stellenbesetzungen bei der betrieblichen Personalsuche aus? Welche Rolle spielen dabei soziale Netzwerke - also Freunde, Verwandte und andere persönliche Kontakte? Sind Jobs, die über soziale Netzwerke gefunden wurden, tatsächlich "bessere" Jobs? Und welche Vorteile...

We study optimal promotion decisions of hierarchical firms, with one junior and one senior managerial position, which interact in a search and matching labour market. Workers acquire experience over time while being employed in a junior position and the firm has to determine the experience level...

This paper develops a labour market matching model with heterogeneous firms, on-thejob search and referrals. Social capital is endogenous, so that better connected workers bargain higher wages for a given level of productivity. This is a positive effect of referrals on reservation wages. At the...

This paper incorporates job search through personal contacts into an equilibrium matching model with a segregated labour market. Job search in the public submarket is competitive which is in contrast with the bargaining nature of wages in the informal job market. Moreover, the social capital of...

This dissertation thesis consists of three independent research papers and is devoted to the topic of worker turnover and incentive contracts in a labour market characterized by search frictions and matching. There exists a large body of literature dating back to the seminal studies by Diamond,...