of assets with short-selling where there is risk and ambiguity. Agents have Bewley’s incomplete preferences. As an … of the risk adjusted sets of probabilities intersect. The more risk averse, the more ambiguity averse the agents, the …

some prior. It is shown that the more uncertainty averse and the more risk averse, the more likely are efficient …The theory of existence of equilibrium with short-selling is reconsidered under risk and ambiguity modelled by risk … of the risk adjusted sets of expectations overlap. This condition is necessary if agents are not risk neutral at extreme …

are necessary when agents are not risk neutral at extreme levels of wealths. It is shown that the more uncertainty averse …The theory of existence of equilibrium with short-selling is reconsidered under risk and ambiguity modelled by risk … averse variational preferences. No-arbitrage conditions are given in terms of risk adjusted priors. A sufficient condition …

attractive, thanks to fairly effective reciprocal hedging during periods of market stress. It delivers enhanced absolute and risk … types of "structural" exposure – long implied volatility and long volatility risk premium – are now simple to implement …. Implied volatility exposure can be used to significantly reduce the risk profile of the portfolio, and especially extreme …

measure and value uncertainty which are critical steps in decision making, real options are scarcely used in practice. The …

synthesis of the main sources of uncertainty as well as an illustration of their effects within an analytical framework. In … particular, it shows that depending on the type of uncertainty and the choice of the selected loss function, the recommendations …

uncertainty. The model explicitly accounts for equipment availability and load duration curves in selecting optimal investment …

and Stiglitz 'model. In this case, we show that the optimal contract exhibits a deductible for the high health risk type … low health risk type. …

In financial economics risk-return tradeoffs show how expected rates of return and consequently asset prices are altered …: (i) Present some of the recent literature that is concerned with the effect of long run risk on returns and prices. (ii …) Develop an analytical structure that reveals the long-run risk-return relationship in nonlinear continuous time Markov …

representation of bank risk, and is not more related to capital market pricing of risk in bank shares, than either net income … performance and risk very differently, especially for companies with significant exposure to changes in fair values of financial … 2005 to 2006, and test the risk-relevance of these different volatility measures. We find that for the average bank, the …