Gómez-Bezares, Fernando; Gómez-Bezares, Fernando R. - In: Cogent economics & finance 3 (2015) 1, pp. 1-14
Quotients, ratios, are among the most applied tools for measuring performance of mutual funds and investment portfolios, the Jensen index being an exception to the general rule. In this paper, we show some problems that arise when quotients are applied, closely related to their statistical...