In their survey of the literature on ethnic fractionalization and economic performance, Alesina and La Ferrara (JEL 2005) identify two main directions for future research. One is to improve the measurement of diversity and the other to treat diversity as an endogenous variable. This paper tries...

This paper proposes a methodology which combines elements of parametric regression analysis with the nonparametric distribution dynamics approach in order to analyse the role of some variables in the convergence of productivity across European regions over the period 1980-2002. We find that the...

Why do people appear to forgo information by sorting into 'echo chambers'? We construct a highly tractable multi-sender, multi-receiver cheap talk game in which players choose with whom to communicate. We show that segregation into small, homogeneous groups can improve everybody's information...

The past four decades have witnessed dramatic changes in the structure of employment. In particular, the rapid increase in computational power has led to large-scale reductions in employment in jobs that can be described as intensive in routine tasks. These jobs have been shown to be...

A growing empirical literature links natural resource abundance and "pointiness" to impeded economic growth and civil strife. We develop rent seeking and conflict models that capture the most salient features of contests for resource rents, and show how both resource abundance and geographical...

We present a Stackelberg model of conflict, in which contestants have limited endowments to be put in two separate sectors, thus incorporating salient features of many conflicts. The model is applied to the case of conflict over natural resources. Consistent with amounting empirical evidence...

Since 1960 foreign aid to countries with civil war has exceeded $300 billion in Sub-Saharan Africa alone. Using a global panel of more than 150 civil wars between 1945 and 2000, this paper evaluates the impact of diplomatic, military and economic interventions on conflict duration. Moreover,...