Helpman,, Elhanan Trade policy and market stucture / Elhanan Helpman, Paul R. Krugman

Trade policy and market stucture / Elhanan Helpman, Paul R. Krugman . - Cambridge, Mas. : The MIT Press, imp. 1991 . - XII, 191 p. : il. gráficos 24 cm
0-262-08182-2 (Encadernado)

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