People differ in their willingness to take risks. Recent work found that revealed preference tasks (e.g., laboratory lotteries) - a dominant class of measures-are outperformed by survey-based stated preferences, which are more stable and predict real-world risk taking across different domains....

This paper argues that radical uncertainty is the outcome of standard market activity. The theoretical findings are corroborated with empirical analyses. The model example is applied to asset pricing and radical uncertainty is found a solution to various asset pricing "puzzles". In conclusion,...