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...

The empirical literature has provided ample yet contradictory evidence on the effectiveness of social ties in the job search process in terms of post-hire outcomes, such as wages or job satisfaction. Whereas early research, mainly focussing on the U.S. labour market, found positive correlations...

This paper develops a search model with heterogeneous workers and social networks. High ability workers are more productive and have a larger number of professional contacts. Firms have a choice between a high cost vacancy in the regular labour market and a low cost job opening in the referral...

In this paper we explore the relationship between ethnic fractionalization and social capital. First, we test for time differences in the impact of ethnic fractionalization on social capital using U.S. data from 1990, 1997 and 2005. Subsequently we examine the data for evidence of the conflict,...

Collaboration is increasingly the norm in many creative domains. Among collaborative ties, repeated ones are especially beneficial as they entail fewer frictions, facilitate greater amounts of information transfer, and engender more trust – all contributing to more creative outputs. Prior...

We study the existence of homophily (i.e. the tendency for people to make friends with people who are similar to themselves) with respect to trustworthiness. We ask whether two friends show similarly trustworthy behavior towards strangers, and whether this is anticipated by outsiders. We develop...