Data

All replication files and code for my published and forthcoming work are available on my Harvard Dataverse. I am also involved in a number of large-scale original and archival data collection efforts, described below.

Developing World Refugee and Asylum Policy (DWRAP)

An original dataset covering 54 de jure policy provisions on asylum and refugees across 92 developing countries from 1952 to 2017. DWRAP is the basis for two papers with Guy Grossman and Jeremy M. Weinstein (IO 2022; APSR 2022) and fills a major gap in existing migration-policy indices, which largely exclude the Global South.

Militant Group Alliances and Relationships (MGAR)

An original dataset documenting 7,409 dyad-year relationships between 2,613 militant groups around the world from 1950 to 2016. I introduce and study these data in papers with Erica Chenoweth, Michael C. Horowitz, Evan Perkoski, and Philip B.K. Potter (IO 2022), Michael C. Horowitz and Philip B.K. Potter (JOP 2022), and Philip B.K. Potter (JOGSS 2023).

Afghanistan Significant Activities (SIGACTs), 2015–2020

Granular, geocoded administrative records on violence in Afghanistan, drawn from NATO/Coalition sources and used in my work on border fortification and refugee return.

Somalia Significant Activities (SIGACTs), 2016–2019

Newly released government microdata on conflict in Somalia, used in my work on the dynamics of internal displacement.

In development

Freedmen’s Education During Reconstruction (FEDR). With Breanna C. Gray, I am digitizing educational records of the Bureau of Refugees, Freedmen, and Abandoned Lands (the Freedmen’s Bureau), reporting the educational attainments of emancipated people in the Reconstruction-era American South, disaggregated by gender, subject, county, and month. We use these data to study how occupation forces shaped engagement with Freedmen’s Bureau schools and the political and economic legacies of Reconstruction-era education.

U.S. Coast Guard Migrant and Drug Interdictions. Through Freedom of Information Act (FOIA) requests, I have obtained declassified, geocoded information on all maritime migrant and drug interdictions by the U.S. Coast Guard from FY 1995 through FY 2017. Available upon request.