In economic project analysis, the rate at which future benefits and costs are discounted relative to current values often determines whether a project passes the benefit-cost test. This is especially true of projects with long time horizons, such as those to reduce greenhouse gas (GHG)...

We examine an important class of decision problem under uncertainty that entails the standarrd portfolio problem and the demand for coinsurance. The agent faces a controllable risk -his demand for a risky asset for example- and a background risk. We determine how a change in the distribution in...

We consider the problem of the optimal use of a good whose consumption can produce damages in the future. Potential damages are proportional to the accumulated lifetimeconsumption of the good. Scientific progress is made over time that provides information on the distribution of the intensity of...