This paper surveys the empirical literature on the growth effects of education and social capital. The main focus is on the cross-country evidence for the OECD countries, but the paper also briefly reviews evidence from labour economics, to clarify where empirical work on education using macro...

The aim of this paper is to investigate whether return migrants are more likely to become entrepreneurs than non-migrants. We develop a theoretical search model that puts forward the trade off faced by returnees since overseas migration provides an opportunity for human and physical capital...

We document that the fraction of entrepreneurs who work in the region where they were born is significantly higher than the corresponding fraction for dependent workers. This difference is more pronounced in more developed regions and positively related to the degree of local financial...

In the large literature on firm performance, economists have given little attention to entrepreneurs. We use deaths of more than 500 entrepreneurs as a source of exogenous variation, and ask whether this variation can explain shifts in firm performance. Using longitudinal data, we find large and...

Local merchant guilds were ubiquitous in medieval Europe, and their development was inextricably linked with the development of towns and the rise of the merchant class. We develop a theory of the emergence of local merchant guilds as an efficient mechanism to implement collusion among merchants...

We model the emergence of formal insurance institutions as equilibria under limited contract enforceability where groups are required to be coalition-proof but also can use fines for enforcement. The model can generate coexistence of formal and informal groups without requiring heterogeneity in...

We study the extent to which a firm’s social capital, as measured by the intensity of a firm’s corporate social responsibility (CSR) activities, affects firm performance during the 2008-2009 financial crisis. We find that high-CSR firms have crisis-period stock returns that are four to five...

We examine a randomized trial that allows separate identification of peer screening and enforcement of credit contracts. A South African microlender offered half its clients a bonus for referring a friend who repaid a loan. For the remaining clients, the bonus was conditional on loan approval....

We study the effect of civil conflict on social capital, focusing on the experience of Uganda during the last decade. Using individual and county-level data, we document large causal effects on trust and ethnic identity of an exogenous outburst of ethnic conflicts in 2002-05. We exploit two...

Product development within and across community-based and geographically dispersed virtual organizations is becoming an increasingly important mechanism through which individual knowledge holders create and disseminate knowledge in joint efforts to generate products. Without the benefits of...