The Impact of Economic Opportunity on Criminal Behavior: Evidence from the Fracking Boom
Abstract
Economic theory suggests crime should decrease as economic opportunities increase the returnsto legal employment. However, there are well-documented cases where crime increases in response
to areas becoming more prosperous. This paper addresses this puzzle by examining the effects on
crime only for residents already living in the area prior to the economic boom. This approach isolates
the effect of local economic opportunity from the effect of changing composition due to in-migration
during these periods. To identify effects, I exploit within- and across-county variation in exposure
to hydraulic fracturing activities in North Dakota using administrative individual-level data on residents, mineral lease records, and criminal charges. Results indicate that the start of economic
expansion – as signaled by the signing of leases – leads to a 14 percent reduction in criminal cases
filed. Effects continue once the fracking boom escalates during the more labor-intensive period. This
is consistent with improved economic opportunity reducing crime.