Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/25787
Year of Publication: 
2006
Series/Report no.: 
CESifo Working Paper No. 1742
Publisher: 
Center for Economic Studies and ifo Institute (CESifo), Munich
Abstract: 
Nearly 75 years ago, John Hicks introduced and formalized the concept of the elasticity of substitution between capital and labour and its relation to derived demand. The resulting formula has proven very useful in understanding the derived demand for productive factors, the distribution of factor incomes, and Marshall's Four Rules. This short paper notes that a slip occurred in the original derivation, presents a modified formula, and shows that Marshall's First Rule is no longer generally valid.
JEL: 
D21
D33
J23
A2
Document Type: 
Working Paper
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