, subjects can reduce or even eliminate the ambiguity and turn the decision situation into one of risk. Under the assumption that …This paper focuses on information acquisition and individual decision making in ambiguous situations and presents a … choice between risky and ambiguous Ellsberg urns, we let them choose between a safe option and a risky lottery, whose risk is …

specification includes two parameters: one for ambiguity attitudes and another for risk attitudes. We also estimate a three …