Date of Award

Fall 1-3-2020

Document Type


Degree Name

Master of Arts (MA)



First Advisor

Michael Levere

Second Advisor

Monica Deza

Academic Program Adviser

Randall Filer


This research examines whether all-offender ignition interlock laws cause statistically significant decreases in DUI arrest rates. Data consist of state and county-level arrest totals over a 16-year period. A difference-in-differences regression model with fixed effects for entity and time is used for the analysis. Results are inconclusive.



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