Regulatory Uncertainty and the Volatility of Regional Electricity Company Share Prices: The Economic Consequences of Professor Littlechild

T A Robinson and Mark Taylor

Bulletin of Economic Research, 1998, vol. 50, issue 1, 37-46

Abstract: This paper attempt to measure the effects of regulatory intervention by measuring the conditional variance of stock price changes in the 12 UK regional electricity companies before and after an unexpected intervention by the electricity regulator in March 1995. The analysis uses an ARCH model in which the conditional variance follows an autoregressive formation. The results indicate a significant increase in the volatility of the conditional variance for eight of the 12 companies. Copyright 1998 by Blackwell Publishing Ltd and the Board of Trustees of the Bulletin of Economic Research

Date: 1998
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