Toward a North American Security Perimeter? Assessing the trade, FDI, and welfare impacts of liberalizing 9/11 security measures

► We examine the economic impact of 9/11 security measures at the Canada-US border. ► A change of security paradigm toward a North American Security Perimeter is analysed. ► Sectoral tariff rates “equivalent” to 9/11 border security measures are computed. ► General equilibrium impacts on trade, FDI, and welfare are assessed.