In this article, we apply count-data travel-cost methods to a truncated sample of visitors to estimate the Peneda-Gerês National Park (PGNP) average consumer surplus (CS) for each day of visit. The measurement of recreation demand is highly specific because it is calculated by number of days of stay per visit. We therefore propose the application of altered truncated count-data models or trunca...

Past research on ethnicity in outdoor recreation has focused on park use and participation in recreation activities. Explanations of differences in park use and participation rates by minorities and non-minorities have emphasized the marginality and ethnicity hypotheses. A different approach can be used that emphasizes visitor’s expectations and preferences for appropriate behaviors at an urban...

We modeled the risk of gastrointestinal (GI) illness associated with recreational exposures to marine water following storm events in San Diego County, California. We estimated GI illness risks via quantitative microbial risk assessment (QMRA) techniques by consolidating site specific pathogen monitoring data of stormwater, site specific dilution estimates, literature-based water ingestion data...

Social networking has been expanding widely for almost two decades. All students use social networking platforms and usage is more intense and complex to impact a whole era social life. Based on cognitive load theory and dual task approach, we measure the mediating effect of social networking sites usage on the impact of individuals’ characteristics on their academic achievement. Research model...

The data allocation problem in incomplete information environments consisting of self-motivated servers responding to users’ queries is considered. Periodically, the servers use auctions for allocation of new data items, and for reallocation of old data items. The utility of a server from storing a data item strongly depends on the usage of the item. However, each server has information only ab...

This study used travel cost and on-site day cost models, coupled with the Forest Service’s National Visitor Use Monitoring data, to examine the demand for and value of recreation access to designated Wilderness.

CONTEXT Skin cancer is the most common form of cancer in the United States, and it is one of the most preventable. Interventions for young children and their parents can help prevent future cases of skin cancer. OBJECTIVE To determine whether a skin cancer prevention program implemented at outdoor recreation sites improved children's sun-protection behaviors and site sun-protection policies. ...