Conventional wisdom holds that protectionism is counter-cyclic; tariffs, quotas and the like grow during recessions. While that may have been a valid description of the data before the Second World War, it is no longer accurate. In the post-war era, protectionism has not actually moved...

This Paper uses 67 measures of trade policy and trade liberalization to ask if membership in the World Trade Organization (WTO) and its predecessor the General Agreement on Tariffs and Trade (GATT) is associated with more liberal trade policy. Almost no measures of trade policy are significantly...