Biased Technical Change and the Malmquist Productivity Index

The Malmquist productivity index has many attractive features. One is that it can be epxressed as the product of a technical efficiency change index and a technical change index. In this paper we express the technical change index as the product of a magnitude index and a bias index. We then express...

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Bibliographic Details
Published in:	The Scandinavian journal of economics 1997-03, Vol.99 (1), p.119-127
Main Authors:	Färe, Rolf, Grifell-Tatjé, Emili, Grosskopf, Shawna, Knox Lovell, C. A.
Format:	Article
Language:	eng
Subjects:	Bias Capital costs Constant returns to scale Distance functions Economic indices Economic models Economic theory Economies of scale Index numbers Indexes Periodical indexing Production technology Productive efficiency Productivity Studies Technological change
Online Access:	Get full text
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Summary:	The Malmquist productivity index has many attractive features. One is that it can be epxressed as the product of a technical efficiency change index and a technical change index. In this paper we express the technical change index as the product of a magnitude index and a bias index. We then express the bias index as the product of an output bias index and an input bias index, and we state conditions under which each bias index makes no contribution to productivity change.
ISSN:	0347-0520 1467-9442 1467-9442