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Discussion paper DP1813 A geometry of Specialization Joseph Francois Douglas R. Nelson 31 Mar 1998 International Trade and Regional Economics F12 O12 O41
Discussion paper DP1803 Global Income Divergence, Trade and Industrialization: The Geography of Growth Take-Offs Richard Baldwin Philippe Martin Gianmarco Ottaviano 9 Mar 1998 International Macroeconomics International Trade and Regional Economics F01 F43 N13 O19