Estimates of the consequences of human-made and natural disasters are crucial for informing decision making by both public and private actors. The 9/11 attack stands out as a particularly important event whose consequences need to be well understood. This study evaluates the macroeconomic...

Inspections of people and vehicles at US border crossings are vital to homeland security and preventing unauthorized movement of people and freight into the US interior. However, these inspections incur various costs, including imposing delays on legitimate traffic and increasing expenditures to...