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Journal Article Market Structure and Foreign Trade: Increasing Returns, Imperfect Competition, and the International Economy Get access Market Structure and Foreign Trade: Increasing Returns, Imperfect Competition, and the International Economy. By ELHANAN HELPMAN and PAUL R. KRUGMAN. (Brighton: Wheatsheaf, 1985. Distributed by Harvester Press. Pp. xii + 271. £25.00 hardback.) John Cantwell John Cantwell University of Reading Search for other works by this author on: Oxford Academic Google Scholar The Economic Journal, Volume 96, Issue 381, 1 March 1986, Pages 243–245, https://doi.org/10.2307/2233450 Published: 01 March 1986
Cantwell et al. (Sat,) studied this question.