The last few years have witnessed important advances in our understanding of time preference and social discounting. In particular, several rationales for the use of time-varying social discount rates have emerged. These rationales range from the ad hoc to the formal, with some founded solely in...

This paper uses a two-sector, two-period,spatial model of groundwater usage withstochastic surface water supply to illustratethe potential for the suboptimal management ofthe timing of groundwater uses. A ``timeprofile externality'' is said to exist when thetiming of groundwater extraction by...

The estimation of dynamic models and themeasure of long-run effects arerare in residential water demand studies. Weshow in this paper that a dynamicmodel of water consumption can be derived froma structural optimisation programsolved by local communities. Thisnonlinear model is estimated on...

We consider the relationship between a localcommunity and a private operator in charge ofthe water utility. An important feature of themodel is the possibility of water networklosses that are costly to the operator. Wecompute the first-best and asymmetricinformation solutions to the optimal...

Hedonic valuation of quality attributes can be misleading when theassumption that these attributes are exogenous to sample selection isviolated. This paper considers the simultaneity between hedonic valuationand sample selection in the context of a model of producer behavior andinvestigates...