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...

I discuss the application of capture-recapture methods to estimating the total number of deaths in armed conflicts, and propose an alternative method based on a trivariate discrete choice model. Data come from the 'Truth and Reconciliation Commission' (TRC) of Peru, around 25000 deaths,...

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 provides causal evidence on the importance of socioeconomic circumstances, socialization, and childhood events, in the formation of adult political behaviour and attitudes, using region-by-cohort variation in exposure to the Jewish expulsions in Nazi Germany as a quasi-experiment. We...

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...

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...

Demographic pressures can create competition for limited private and public resources and exacerbate pre-existing inter-ethnic tensions. At the same time, inter-ethnic competition may influence individual fertility decisions. Using the variation in birth rates in Malaysia induced by the Chinese...

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...