We provide causal evidence that immigration has contributed to the polarization of American politics. Using an ancestry-based shift-share instrument, we study immigration flows into U.S. counties between 1992 and 2016. Counties exposed to larger immigrant inflows become more polarized both in...

Do factual immigration updates shift societal concerns across political ideologies? Conducting an online experiment in the lead-up to the 2024 U.S. Presidential Election, respondents provided local immigrant stock and flow estimates before being randomized to receive realistic information on...

We provide causal evidence that immigration has contributed to the polarization of American politics. Using an ancestry-based shift-share instrument, we study immigration flows into U.S. counties between 1992 and 2016. Counties exposed to larger immigrant inflows become more polarized both in...

Do factual immigration updates shift societal concerns across political ideologies? Conducting an online experiment in the lead-up to the 2024 U.S. Presidential Election, respondents provided local immigrant stock and flow estimates before being randomized to receive realistic information on...

Elections in fragile democracies are not merely contests over policy but battles for control over state resources, including foreign aid. Aid provides local governments with substantial discretionary funds, creating strong incentives for rent-seeking political actors to capture political office....

This paper studies the causal effect of transport infrastructure on the spatial distribution of economic activity within subnational regions across a large number of developing countries. To do so, we introduce a new global dataset of geolocated Chinese grant- and loan-financed development...

Elections in fragile democracies are not merely contests over policy but battles for control over state resources, including foreign aid. Aid provides local governments with substantial discretionary funds, creating strong incentives for rent-seeking political actors to capture political office....

This paper studies the causal effect of transport infrastructure on the spatial distribution of economic activity within subnational regions across a large number of developing countries. To do so, we introduce a new global dataset of geolocated Chinese grant- and loan-financed development...

This paper examines the influence of political leaders' spouses on resource allocation and regional development. We construct two new global datasets: one tracking leaders' and spouses' characteristics and one that geocodes aid projects, including new data from the United States and 18 European...

This paper examines the influence of political leaders' spouses on resource allocation and regional development. We construct two new global datasets: one tracking leaders' and spouses' characteristics and one that geocodes aid projects, including new data from the United States and 18 European...