Why do some leaders invest in significant nation-building policies and others do not? Why does nation-building occur at certain junctures in time and not others? In our research, we investigate what motivates leaders to nation build. We argue that threats to their regime motivate rulers to...

Using new large-scale survey and experimental data, we investigate how respondents perceive racial inequities between Black and white Americans, what they believe causes them, and what interventions, if any, they think should be implemented to reduce them. We intentionally oversample Black...

We review the growing literature on the political economy of immigration. First, we discuss the effects of immigration on a wide range of political and social outcomes. The existing evidence suggests that immigrants often, but not always, trigger backlash, increasing support for anti-immigrant...

The increase in army size observed in early modern times changed the way states conducted wars. Starting in the late 18th century, states switched from mercenaries to a mass army by conscription. In order for the population to accept to fight and endure war, the government elites began to...

Nations stay together when citizens share enough values and preferences and can communicate with each other. Homogeneity amongst people can be built with education, teaching a common language, building infrastructure for easier travel, but also by brute force such as prohibiting local cultures...

Current surpluses in the U.S. have been achieved by a combination of a strong economy, low interest rates, and sharp cuts in defence spending. These surpluses follow a period (the eighties) of rather exceptional budget deficits. This paper investigates the origin, size, and expected future...

This paper provides a simple conceptual framework that captures how different perceptions, attitudes, and biases about immigrants or minorities can shape preferences for redistribution. Through the lens of this framework, we review the empirical literature on the effects of racial diversity and...

Americans are polarized not only in their views on policy issues and attitudes towards government and society, but also in their perceptions of the same factual reality. We conceptualize how to think about the "polarization of reality" and review recent papers that show that Republicans and...

We assemble two unique databases. One is on reforms in domestic finance, external finance, trade, product markets and labor markets, which covers 90 advanced and developing economies from 1973 to 2014. The other is on electoral results and timing of elections. In the 66 democracies considered in...

Can efforts to eradicate inequality in wealth and education eliminate intergenerational persistence of socioeconomic status? The Chinese Communist Revolution in the 1950s and Cultural Revolution from 1966 to 1976 aimed to do exactly that. Using newly digitized archival records and contemporary...