Industry Profit Margins and Concentration: Evidence from UK Manufacturing

Martin J. Conyon ()

International Review of Applied Economics, 1995, vol. 9, issue 3, pages 275-90

Abstract: This paper examines the determination of UK manufacturing industry profit margins using a panel of data from 1980 to 1991. In particular, we test whether industry concentration is important in shaping margins. Our results indicate that for both pooled cross-section data and for fixed effects models there is a robust positive correlation between industry margins and market concentration. However, the formulation of the margin matters for establishing this association. For those margins where a net revenue measure is used in the denominator of the margin then we are able to isolate the predicted relationship. However, for those margins that use gross revenue in the denominator the matter is more complex. Without controlling for a measure of material costs in the estimating equations then a simple concentration effect cannot be isolated. Copyright 1995 by Taylor and Francis Group

Date: 1995

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Persistent link: http://EconPapers.repec.org/RePEc:taf:irapec:v:9:y:1995:i:3:p:275-90

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International Review of Applied Economics is edited by Malcolm Sawyer, Philip Arestis, Keith Cowling and Ron Smith

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