This note addresses some issues that arise when using 'normalized' CES production functions, an approach that has become popular in the literature. The results of Klump and de La Grandville (2000) provide a simple way to calibrate the parameters of the CES production function when the necessary data are available. But some of the other applications of normalized CES production functions appear problematic, especially when used to argue that productivity is increasing in the elasticity of substitution.
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Find related papers by JEL classification: D24 - Microeconomics - - Production and Organizations - - - Production; Capital and Total Factor Productivity; Capacity O40 - Economic Development, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General
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