averse to risk and ambiguity. The evidence is largely correlational, however, leaving open the question of the direction of … causality. In this paper, we present experimental evidence of causation running from reliance on intuition to risk and ambiguity … lowers the probability of being ambiguity averse by 30 percentage points and increases risk tolerance by about 30 percent in …

between risk and uncertainty is implemented by applying the Gilboa-Schmeidler maxmin with multiple priors framework to lenders …

The preferred risk habitat hypothesis, introduced here, is that individual investors select stocks with volatilities … commensurate with their risk aversion; more risk-averse individuals pick lower-volatility stocks. The investors' portfolio … stocks are sold they are replaced by stocks of similar volatilities, and the more risk averse customers indeed hold less …

In this paper, we study the determinants of the value of informal risk sharing groups. In particular, we look at the … if individuals can deviate form risk sharing agreements in coalitions or not. We test empirically several predictable … size of risk sharing groups can be rejected or that only imperfect risk sharing is obtained within the village because of …

willingness of the unemployed to search. I characterize the optimal insurance contract when participation to training programs …-sloping rather than constant for the long-term unemployed. Second, the optimal contract never stops encouraging the long …

We propose a new theory of systemic risk based on Knightian uncertainty (or "ambiguity"). We show that, due to … pessimistic about other asset classes as well. This means that idiosyncratic risk can create contagion and snowball into systemic … risk. Furthermore, in a Diamond and Dybvig (1983) setting, we show that, surprisingly, uncertainty aversion causes …

The paper investigates whether the financial crisis did affect risk perceptions, and, hence, change structural … parameters. By decomposing credit spreads of US corporate bonds into the contributions by credit, equity, and liquidity risk … factors as well as structural change, the relative contribution of the change in risk perceptions can be measured. We show …