This paper discusses identification of causal intensive margin effects. The causal intensive margin effect is defined as the treatment effect on the outcome of individuals with a positive outcome irrespective of whether they are treated or not (always-takers or participants). A potential...

This paper discusses identification of causal intensive margin effects. The causal intensive margin effect is defined as the treatment effect on the outcome of individuals with a positive outcome irrespective of whether they are treated or not (always-takers or participants). A potential...

Travel cost recreation demand models stem from a simple, but penetrating, insight. Consumption of an outdoor recreation site's services requires the user to incur the costs of a trip to that site. Travel costs serve as implicit prices. These costs reflect both people's distances from recreation...

Heterogeneity is a defining characteristic of environmental demand studies that use household-level data. People make different choices due to observed and unobserved differences in preferences and constraints, choice elements are quality-differentiated commodities that can be consumed in...