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UK market efficiency and the Myners review: a univariate analysis of strategic asset allocation by industrial sectors.

Willcocks, G., 2006. UK market efficiency and the Myners review: a univariate analysis of strategic asset allocation by industrial sectors. Doctoral Thesis (Doctoral). Bournemouth University.

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The Treasury's report "Institutional Investment in the United Kingdom: A Review" (the Myners Review) suggested in 2001 that various sectors of the UK equity market may be suitable for active investment management, tacitly assuming that some sectors are efficient whilst others are not. The validity of this assumption is tested against 29 industrial sector indices within the FTSE All Share index. Sector efficiency is, taken to be that index values reflect information correctly (strong efficient) or to the point where benefits do not exceed costs (weakly efficient). Existence of a sector index following a random walk is used to identify strong efficiency with the subsequent conclusion that passive management would be appropriate. Where the time series is not random, forecasting gains less than the management costs of active trading indicate weak efficiency with the corollary that passive management is still applicable. Industrial sectors where the index can be forecast with gains in excess of costs are not efficient and are appropriate for active management. The indices are tested for stationarity: none are stationary in levels but all reject the Dickey Fuller null hypothesis of a unit root in their first difference, the logarithmic return. Tests for randomness are based on pure random walks and random walks with drift and/or trend. Non-random time series are examined for maintained regressions based on AR, MA and ARMA. Where appropriate, ARCH is applied to the variance, utilising GARCH, Threshold GARCH, GARCH-in mean, Exponential GARCH and Component GARCH. Additionally there is a test for cointegration. All potential data generating processes' residuals are tested for independent identical distributions using the BDS test. If the maintained regression produces residuals that are III) then that series is assumed to be explained. The results show that four indices are strong efficient and five are weak; giving nine sectors that should be managed passively. Only one sector is found where there is scope for active management to make an abnormal gain in excess of costs. Nineteen of the indices had GARCH, which indicated a possible lack of efficiency but no decision on management style. One index was unexplained. Thus the Myners review's suggestion of active management where appropriate was valid, but limited solely to the Personal Care & Household Products sector.

Item Type:Thesis (Doctoral)
Additional Information:A thesis submitted in partial fulfilment of the requirements of Bournemouth University for the degree of Doctor of Philosphy. If you feel this work infringes your copyright please contact the BURO Manager.
Group:Bournemouth University Business School
ID Code:10549
Deposited On:06 Aug 2009 06:29
Last Modified:09 Aug 2022 16:02


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