This technical Appendix describes the structural model used as part of the Spatial Eco- nomic Research Centre's work for the Northern Way on linkages between the Manchester and Leeds City Regions. A summary of the research, as well as a full report of the findings, can be found on the web-sites...

Barriers to international trade are known to be large but because of data limitations it is hard to measure them directly for a large number of countries over many years. To address this problem, I derive a micro-founded measure of bilateral trade costs that indirectly infers trade frictions...