In the Empirical Estimating Equations (E^3) approach to estimation and inference estimating equations are replaced by their data-dependent empirical counterparts. It is odd but with E^3 there are models where the E^3-based estimator does not exist for some data set, and does exist for others....

The paper analyzes the discount rate under uncertainty. The analysis complements the probabilistic characterization of uncertainty by a measure of confidence. Special cases of the model comprise discounting under smooth ambiguity aversion as well as discounting under a disentanglement of risk...

We study a model in which the level of environmental regulation depends on abatement cost, which depend on aggregate levels of investment in abatement capital. Firms are non-strategic. When emissions quotas are not tradable, there are multiple competitive equilibria to the investment problem....