Replaced with revised version of paper 07/30/04.

With current concerns about climate change and the general status of the environment, there is an increasing expectation that products have sustainability credentials, and that these can be verified. Labelling is a common method of communicating certain product attributes to consumers that may...

A crucial factor in the success of any water quality trading market is its ability to cost-effectivelyreallocate nutrient allowances from initial holders to those users who find them most valuable;the market's trading efficiency. We explore causes of and solutions to trading inefficiency...

We used the well-being evaluation method, a technique for measuring individual utility, to study how people in the wildland urban interface of Colorado (USA) felt about their lives before and after two wildfire scenarios. Variables such as age, family size, fire frequency, and house value were...

Stated preference approaches are widely used in non-market valuation. However, their potential uses extend far beyond valuation. In particular they can be used to assess efficiency of resource allocations and to design optimal resource allocations. Changes to the government budget were evaluated...

Various household survey indicators of adult nutrition and health status are analyzed as determinants of individual wages. However, survey indicators of health status may be heterogeneous, or a combination of health human capital formed by investment behavior and variation due to genotype,...

Using longitudinal survey data from western Kenya, this paper estimates the economic impacts of antiretroviral treatment. The responses in two important outcomes are studied: (1) labor supply of adult AIDS patients receiving treatment; and (2) labor supply of patients’ household members. We...

Existing studies on the economic impact of wildfire smoke have focused either on single fire events or entire fire seasons without distinguishing between individual occurrences. Neither approach allows for an examination of the marginal effects of fire attributes, such as distance and fuel type,...

This essay investigates the impacts of primary care giver’s (PCG) time allocation and food expenditure choices on childhood obesity using national panel study of income dynamic (PSID) data. A triangular system of equations is derived and estimated under parametric and semi-parametric model...

This paper is based on an ongoing joint work with David Sahn and Xiaobo Zhang.