REGULARITY OF THE GENERALIZED QUADRATIC PRODUCTION MODEL: A COUNTEREXAMPLE
William Barnett () and
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Meenakshi Pasupathy: Department of Economics and Finance, School of Business, Baruch College
No 201235, WORKING PAPERS SERIES IN THEORETICAL AND APPLIED ECONOMICS from University of Kansas, Department of Economics
Recently there has been a growing tendency to impose curvature, but not monotonicity, on specifications of technology. But regularity requires satisfaction of both curvature and monotonicity conditions. Without both satisfied, the second order conditions for optimizing behavior fail and duality theory fails. When neither curvature nor monotonicity are imposed, estimated flexible specifications of technology are much more likely to violate curvature than monotonicity. Hence it has been argued that there is no need to impose or check for monotonicity, when curvature has been imposed globally. But imposition of curvature may induce violations of monotonicity that otherwise would not have occurred. We explore the regularity properties of our earlier results with a multiproduct financial technology specified to be generalized quadratic. In our earlier work, we used the usual approach and accepted the usual view. We now find that imposition of curvature globally and monotonicity locally does not assure monotonicity within the region of the data. Our purpose is to alert researchers to the kinds of problems that we encountered and which we believe are largely being overlooked in the production modelling literature, as we had been overlooking them.
Keywords: Technology; Regularity; Curvature; Production; Flexibility (search for similar items in EconPapers)
JEL-codes: C51 C3 C13 (search for similar items in EconPapers)
Date: 2012-09, Revised 2012-09
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Journal Article: Regularity of the Generalized Quadratic Production Model: A Counterexample (2003)
Working Paper: REGULARITY OF THE GENERALIZED QUADRATIC PRODUCTION MODEL: A COUNTEREXAMPLE (2001)
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Persistent link: http://EconPapers.repec.org/RePEc:kan:wpaper:201235
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