Introduction / Mario GARCIA-MOLINA and Hans-Michael TRAUTWEIN -- Core and periphery -- Core and periphery in the early cold war : a historical analysis of development theory / Natália BRACARENSE -- Anarchic accumulation, un-effective demand and institutional constraints : Oskar Lange's critique...

Elasticity of substitution was introduced into economics during the early 1930s. It was discovered independently by Hicks in The Theory of Wages and by Joan Robinson in The Economics of Imperfect Competition, and then was the centre of a polemic involving Kahn and Sraffa, among others. The...