We propose a model to assess the credit risk features of fixed income portfolios assuming they can be characterized by two parameters: their default probability and their default correlation. We rely on explicit expressions to assess their credit risk and demonstrate the benefits of our approach...

Ambiguity aversion has been suggested as a potential explanation for the equity premium puzzle in recent theoretical models. To test this hypothesis, we measure the amount of ambiguity aversion in a large-scale international survey. A comparison to the average equity premia in these countries...

We show that if an agent is uncertain about the precise form of his utility function, his actual relative risk aversion may depend on wealth even if he knows his utility function lies in the class of constant relative risk aversion (CRRA) utility functions. We illustrate the consequences of this...

We study the optimal insurance demand in the μ,σ space when the decision-maker faces a first-order risk increase. In particular, we investigate the effect of an increase in the expected damage when the variance is held constant. An unambiguous result is derived on insurance demand that differs...

We test the accuracy and hedging performance of the deltas given by a range of nonparametric measure changes. The nonparametric models accurately estimate deltas across a number of asset price dynamics. The optimal nonparametric measure change displays superior estimation bias, which depends on...

This note examines a numerical approach for computing American option prices in the lognormal jump–diffusion context. The approach uses the known transition density of the process to build a discrete-time, homogenous Markov chain to approximate the target jump–diffusion process. Numerical...

This paper examines the effect of uncertainty on investment timing in a game theoretic real option model. We extend the settings of the related recent literature on investment timing under uncertainty by a more general assumption, i.e. the investment is also influenced by the actions of a second...

Using a dynamic real options approach we show that managerial flexibility is strengthening the first-mover advantage in bargaining M&As by undermining the bargaining power of the second mover.