1. If Mathematics Is Informal, Then Perhaps We Should Accept That Economics Must Be Informal Too;R E Backhouse;Controversy: Formalism in Economics,1998
2. Agglomeration and Endogenous Capital;R Baldwin;European Economic Review,1999
3. Trade and Growth: any Unfinished Business?;R Baldwin;European Economic Review,1998
4. Oligopoly in Segmented Markets;R Barro;Imperfect Competition and International Trade,1992
5. Intra-industry Trade in Identical Commodities;M Blaug;Economic Theory in Retrospect,1980