We present a conceptual framework linking cultural heterogeneity to inter-group conflict. When conflict is about control of public goods, more heterogeneous groups are expected to fight more with each other. In contrast, when conflict is about rival goods, more similar groups are more likely to...

Normally, economists take the size of countries as an exogenous variable. Nevertheless, the borders of countries and their size change, partially in response to economic factors such as the pattern of international trade. Conversely, the size of countries influences their economic performance...

What obstacles prevent the most productive technologies from spreading to less developed economies from the world’s technological frontier? In this paper, we seek to shed light on this question by quantifying the geographic and human barriers to the transmission of technologies. We argue that...

A new data set of on openness indicators and trade liberalization dates allows the 1995 Sachs and Warner study on the relationship between trade openness and economic growth to be extended to the 1990s. New evidence on the time paths of economic growth, physical capital investment, and openness...

This article investigates the links between trade policy and economic growth in a panel of 57 countries between 1970 and 1989. It develops a new measure of trade policy openness based on the policy component of trade shares, using it in a simultaneous equations system to identify the effect of...

Using a unique, comprehensive household-level dataset for a single French village from 1730 to 1895, we study the process of modernization during a period of rapid institutional and demographic transformation. We document changes in fertility, mortality, human capital and intergenerational...

The New Keynesian Phillips Curve is at the center of two raging empirical debates. First, how can purely forward looking pricing account for the observed persistence in aggregate inflation. Second, price-setting responds to movements in marginal costs, which should therefore be the driving force...