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1977 • 7,516 citations

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2016 • 1,375 citations

The Theory of Trade in Middle Products

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1979 • 279 citations

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1981 • 109 citations

Production, Trade, and Migration with Differentiated, Skilled Workers

1988 • 48 citations

The Gains from Trade Theorem with Increasing Returns to Scale

1982 • 44 citations

The Theory of International Trade and Its Canadian Applications

1985 • 12 citations