This paper surveys the literature on the implications of trade liberalisation for intra-national economic geographies. Three results stand out. First, neither urban systems models nor new economic geography models imply a robust prediction on the impact of trade openness on spatial...

This paper provides a comprehensive description of intra-industry trade patterns and trends, using data on more than 39 million bilateral trade flows. In 2006, 27 percent of global trade was intra-industry if measured at the finest (5-digit) level of statistical aggregation, and 44 percent if...