Capital theory and the origins of the elasticity of substitution (1932–35)
研究了替代弹性在1930年代初被引入经济学的过程，由希克斯和琼·罗宾逊独立发现，并涉及卡恩和斯拉法等学者的争论，讨论了不完全竞争和资本理论问题。
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 debate focused on imperfect competition and capital-theoretical issues. Some elements of the 1950s and 1960s capital theory controversy, such as the idea of capital as a Giffen good or the difficulties of measuring capital, were already discussed at this early stage. Copyright 2005, Oxford University Press.