THE COST OF RETAINED EARNINGS: A FURTHER NOTE, AN ILLUSTRATION AND A COMPUTER PROGRAM

This paper presents the personal and corporate tax adjusted version of the cost of retained earnings, with particular reference to the problem of computing the effective rate of tax on a unit of pre tax profit when one allows for the delayed incidence of part of the tax impost. The argument is illustrated numerically and supported by a computer program which enables the user to consider and work out the effect of changing one or more variables. A term which appeared in a previous article (Lister 1981) is corrected.     

BIASES IN PERFORMANCE MEASUREMENT DURING CONTRIBUTIONS: A NOTE

This note demonstrates that a statistical error (e.g., due to pricing error) made in valuing an investment fund at the time of an intra-period contribution leads to an error in calculating the period's total return, even if the fund was valued correctly at the beginning and end of the period. On average, even if the valuation error is distributed randomly with mean zero, the fund's performance will be biased.     

A MEASUREMENT OF THE ERRORS IN INTRA-PERIOD COMPOUNDING AND BOND VALUATION: A SHORT EXTENSION

Previously identified errors in yield calculations and bond valuation are shown to affect bond duration and interest elasticity calculations. These errors may be material and lead to poorly immunized bond portfolios.     

A MEASUREMENT OF THE ERRORS IN INTRA-PERIOD COMPOUNDING AND BOND VALUATION

The errors in intra-period compounding and bond pricing are widespread in textbooks, and they also periodically occur in published research. This article deals with the measurement of error and the magnitude of error when, given the market price of other than annual bonds, the yield to maturity is calculated using the incorrect formula. The authors demonstrate that the errors are (1) the result of confusion, not oversight, (2) large in magnitude when the effective yearly interest rate is high, and (3) not symmetrical; that is, the characteristics of the errors when determining yields, given bond prices, differ from the characteristics of the errors when determining bond prices, given interest rates.