In laboratory asset markets, subjects trade shares of a firm whose profits in a linked product market determine dividends. Treatments vary whether dividend information is revealed once per period or in real-time and whether the firm is controlled by a profit-maximizing robot or human subject....

In this article, a simple paper-and-pencil experiment, based on lottery bonds, shows that financial decisions taken by participants are inconsistent with the traditional view of economic agents as risk averse expected utility maximizers. First, our results cast doubt on the relevance of variance...