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Published online by Cambridge University Press: 11 August 2014
1.1. The FT-Actuaries share indices have now been published for about 11 years and calculated for a rather longer period. They have become accepted as one of the standard measures of equity share price movements. They represent a valuable contribution by actuaries in the field of investment analysis, indeed Heywood (1) states that he considered them to be the best public relations exercise of the Institute. (We assume here that he meant profession).
1.2. Yet, there are a considerable number of actuaries and actuarial students who have no more than a vague knowledge of its working, while most laymen are completely baffled by the mathematics involved. Haycocks and Plymen (2), in an extremely comprehensive and often very elegant paper, described the basic construction of the indices. But because they were actuaries addressing other actuaries they naturally used algebraic formulae. This, in itself, automatically ensures that most laymen in the investment field do not read beyond page 1.