L. Amato et Rp. Wilder, ALTERNATIVE PROFITABILITY MEASURES AND TESTS OF THE STRUCTURE-PERFORMANCE RELATIONSHIP, Review of industrial organization, 10(1), 1995, pp. 21-31
This paper compares the inferences gained when alternatively specifyin
g Census-based price-cost margin and IRS-based accounting rate of retu
rn as the dependent variable in conventional structure-performance mod
els. We find important differences between the structure-performance i
nferences of the alternative specifications of the profit measure. Fur
ther, the alternative profit measures are not highly correlated.