We examine optimal saving in the presence of two small risks: income risk and a background risk. First, we compute the necessary and sufficient condition for a positive precautionary saving, showing that it depends on two terms capturing respectively the direct effect of income risk and the...

The paper examines the effects of environmental uncertainty on Pigouvian tax and abatement policy used, either separately or contemporaneously, to counteract pollution. We discuss uncertainty in three aspects: environmental quality, pollution effect and the impact of abatement. For each case we...

This work shows that the risk premium can be a mistaken measure of the reduction in utility caused by uncertainty since, when different level of wealth are considered, the relative size of the former is related to that of the latter only in some cases. The analysis indicates that this is because...