Events at CERGE-EI
Tuesday, 9 December, 2025 | 13:00 | Room 402 | Brown Bag Seminar | also ONLINE
William King Leroy: "Undocumented Immigration & Crime in the United States: A Micro-Level Analysis"
Let us invite you to a Brown Bag Seminar by William King LeRoy, M.A., B.A., Ph.D., Faculty of Law, Charles University, on Tuesday, December 9, from 13:00 at room 402. You can also attend online.
Presenter: William King Leroy (
Title: "Undocumented Immigration & Crime in the United States: A Micro-Level Analysis"
Abstract: This paper examines the relationship between undocumented immigration and crime using data covering approximately 16,000 migrant hotel rooms during the New York City migrant housing crisis. I exploit the timing of migrant busing from the southern border as an exogenous source of variation in a difference-in-differences specification. I find that an additional 100 migrant shelter hotel rooms (per 100k Hispanics) are associated with 1.11 more Hispanic arrests (per 100k Hispanics) at the modified zip code-by-week level. The baseline results are driven by cash-generating offenses—such as petit and grand larceny—and hinge on access to informal construction hiring hubs.
You can join the seminar in person at the following address:
CERGE-EI, Politických vězňů 7, Praha 1, room 402
Meeting link: TBA
Meeting number: TBA
Meeting password: TBA







