The events of 9/11 and subsequent border entry security initiatives have led to increased costs and transportation delays that have the potential to impact Canada-U.S. trade. Researchers have identified increased border crossing times for importers and exporters transporting goods between the two countries, but there has been little effort made to identify the quantitative importance of these developments in terms of their effect on bilateral trade flows. In this study, Steven Globerman and Paul Storer fill this gap in the existing research through statistical analysis of trade flows since...