We test the relation between ambiguity aversion and five household portfolio choice puzzles: non- participation, low allocations to equity, home-bias, own-company stock ownership, and portfolio under- diversification. In a representative U.S. household survey, we measure ambiguity aversion using...

We show that the allocation of managerial ownership to individuals within firms varies depending upon the joint distribution of decision control and decision management rights. Using a unique dataset of institutional investment management firms, we show that ownership is higher for managers:...