After September 11, 2001, the U.S. and Canadian federal governments increased restrictions on materials and people crossing the border. Antiterrorism regulations have introduced costly compliance requirements, clearance delays, and unpredictable border wait times for companies conducting...

There is consensus among scholars and policy makers that knowledge is one of the key drivers of long-run economic growth. It is also clear from the literature that not all knowledge has the same value. However, too often in economic geography and cognate fields we have been obsessed with...