Hurdle count models are used to examine the participation and consumption decisions in Chinese medicine use. Motivated by a household production model, a second censoring mechanism is introduced into existing single-hurdle models, and the resulting specification accommodates conscientious...

As provincial governments in Canada trim budgets, fewer funds are available for environmental conservation programs. Many jurisdictions are letting private interests and/or users of the resource base help fund conservation projects. Thus funding for conservation is becoming more dependent on...

We derive the conditional mean of the limited dependent variable for a general class of sample selection models with a logarithmically transformed dependent variable. An application to household charity donation suggests use of the correct conditional mean is important.

An agricultural production function is estimated using a Chinese county-level dataset along with associated geographic information. County-specific output-input elasticities are computed using the geographically weighted regression (GWR) and mapped with the geographical information system (GIS)....

A heteroscedastic double-hurdle model is used to investigate household butter consumption in the United States. Results suggest that failure to incorporate heteroscedastic errors may lead to unreliable elasticity estimates. Decomposition of the effects of variables leads to insightful...

This study estimates the effects of an urban growth boundary (UGB) on land development decisions in Knox County, TN, using a heteroscedastic probit model. With combined efforts of increased land development within the city boundary and decreased development within the UGB and the neighboring...

Consumption of cigarettes, beer and wine by individuals is investigated, using a multivariate sample selection model. Empirical results suggest that the proposed model performs better than the restricted specifications. Gender differences are also present.