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Sudhanshu Mishra
''Least squares estimation of joint production functions by the differential evolution method of global optimization''
( 2007, Vol. 3 No.51 )
Most of the studies relating to estimation of joint production functions have noted two difficulties: first that allocation of inputs to different outputs is not known, and the second that a method of estimation cannot have more than one dependent variable, which necessitates construction of a composite output transformation function. This study has conducted some simulation experiments on joint estimation of the CES, the Transcendental and the Nerlove-Ringstad functions. Allocation parameters of inputs across the products have been introduced. Estimation has been done jointly, but without constructing a composite macro production function or an output transformation function. We use nonlinear least squares based on the Differential Evolution method of global optimization that permits fitting multiple production functions simultaneously.
JEL: C1 - Econometric and Statistical Methods: General
C6 - Mathematical Methods and Programming: General
Manuscript Received : Sep 12 2007 Manuscript Accepted : Oct 11 2007

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