1. Trade and productivity;Alcalá;Quarterly Journal of Economics,2004
2. Economic Geography and Public Policy;Baldwin,2003
3. Interregional and International Trade, Seventy Years After Ohlin;Behrens,2003
4. An Introduction to Geographical Economics;Brakman,2001
5. The spatial distribution of wages: estimating the Helpman–Hanson model for Germany;Brakman;Journal of Regional Science,2004