A large number of empirical studies pointed to the ongoing expansion of the shadow economy in many countries around the globe. A robust finding in these studies is the positive association between unemployment rates and the size of the unofficial sector. However, with consistent estimates of the...

We analyze how the exposure to adverse macroeconomic conditions during the "impressionable years" (i.e., between the age of 18 and 25), in interaction with welfare state institutions, forms political attitudes in adulthood. Based on a large panel dataset of European countries, we find that...

We explore the effect of historical ethnic borders on contemporary conflict in Africa. We document that both the intensive and extensive margins of contemporary conflict are higher close to historical ethnic borders. Exploiting variations across artificial regions within an ethnicity's...

We study the role of proximity to historical ethnic borders in determining individual land ownership in Sub-Saharan Africa. Following an instrumental variable strategy, we document that individuals have a lower likelihood of owning land near historical ethnic borders. In particular, the...

In the context of a global security framework that mitigates interstate conflicts, nation-states establish a reputation for resolve by supporting foreign insurrections. Our theoretical predictions indicate that states with a greater number of co-ethnic groups abroad are more inclined to endorse...

Using the universe of individual asylum cases in the United States from 2000-2004 and a difference-in-differences research design, we test whether Sept. 11, 2001 decreased the likelihood that applicants from Muslim-majority countries were granted asylum. Our estimates suggest that the attacks...

This paper examines the economic consequences of terror attacks and the channels through which terrorism affects local economies. I rely on an exhaustive list of terror attacks over the period 1970-2013 in the U.S. and exploit the inherent randomness in the success or failure of terror attacks...

This paper investigates the long-run effects of climate change on conflict by examining cooling from 1400-1900 CE, a period that includes most of the Little Ice Age. We construct a geo-referenced and digitized database of conflicts in Europe, North Africa, and the Near East from 1400-1900, which...

Many observers have noticed the importance of anger in contemporary politics, particularly with reference to populism. This article addresses the question under which conditions people become angry about a specific aspect of their lives: their personal financial situation. Specifically, it asks...

We perform an empirical investigation of the socioeconomic determinants and consequences of all mass shootings in the U.S. from 2000 to 2015. We first manually search for and collect information on perpetrators. We find that approximately 40% (45%) of shooters were in financial distress...