Without the passions there would be little reason to act at all. Nevertheless, in standard economic models human action is driven solely by self-interest: the passions are supposed to interfere with our ability to form rational beliefs and to make rational choices. In fact, any action originated...

The purpose of this paper is twofold: first, to survey the statistical models of stock returns that have been suggested in the finance literature since the middle of the twentieth century; second, to examine under the prism of the contemporary philosophy of science, which of the aforementioned...