论文信息 - SOME STATISTICAL ISSUES IN THE ESTIMATION OF A SIMPLE COST‐VOLUME‐PROFIT MODEL*

SOME STATISTICAL ISSUES IN THE ESTIMATION OF A SIMPLE COST‐VOLUME‐PROFIT MODEL*

This paper presents point and interval estimators of both long-run and single-period target quantities in a simple cost-volume-profit (C-V-P) model. This model is a stochastic version of the “accountant's break-even chart” where the major component is a semivariable cost function. Although these features suggest obvious possibilities for practical application, a major purpose of this paper is to examine the statistical properties of target quantity estimators in C-V-P analysis. It is shown that point estimators of target quantity are biased and possess no moments of positive order, but are consistent. These properties are also shared by previous break-even models, even when all parameters are assumed known with certainty. After a test for positive variable margins, Fieller's [6] method is used to obtain interval estimators of relevant target quantities. This procedure therefore minimizes possible ambiguities in stochastic break-even analysis (noted by Ekern [3]).

Louis P. Ramsay | R. Stephen Cantrell

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