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ON THE RELATION BETWEEN GROSS OUTPUT– AND VALUE ADDED–BASED PRODUCTIVITY MEASURES: THE IMPORTANCE OF THE DOMAR FACTOR

Published online by Cambridge University Press:  15 September 2009

Bert M. Balk*
Affiliation:
Statistics Netherlands and Erasmus University
*
Address correspondence to: Bert M. Balk, Rotterdam School of Management, Erasmus University, P. O. Box 1738, 3000 DR Rotterdam, the Netherlands, e-mail bbalk@rsm.nl.

Abstract

In this paper I consider the relation between gross output– and value added–based total factor productivity (TFP) measures. It appears that, without any (micro-)economic theory being required, a conditional relationship between TFP indices can be derived, in which the Domar factor plays an important role. At the same time it turns out that gross output– and value added–based TFP indicators (difference-type measures) always coincide. In the Divisia index framework and maintaining the classical assumptions (profit maximization and a production technology that exhibits globally constant returns to scale), it appears that both TFP indices measure technological change, albeit in a dual way. In establishing this result, no separability assumptions are involved. Both indices are in general path-dependent. Path independence of the gross output–based TFP index requires that the technology exhibit Hicks input neutrality, whereas path independence of the value added–based TFP index requires Hicks value-added neutrality. These two concepts of neutrality are, however, not dual.

Type
Articles
Copyright
Copyright © Cambridge University Press 2009

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