Abstract
The National Park Service (NPS) currently manages a large and diverse system of park units nationwide which received an estimated 279 million recreational visits in 2011. This article uses park visitor data collected by the NPS Visitor Services Project to estimate a consistent set of count data travel cost models of park visitor willingness to pay (WTP). Models were estimated using 58 different park unit survey datasets. WTP estimates for these 58 park surveys were used within a meta-regression analysis model to predict average and total WTP for NPS recreational visitation system-wide. Estimated WTP per NPS visit in 2011 averaged $102 system-wide, and ranged across park units from $67 to $288. Total 2011 visitor WTP for the NPS system is estimated at $28.5 billion with a 95% confidence interval of $19.7–$43.1 billion. The estimation of a meta-regression model using consistently collected data and identical specification of visitor WTP models greatly reduces problems common to meta-regression models, including sample selection bias, primary data heterogeneity, and heteroskedasticity, as well as some aspects of panel effects. The article provides the first estimate of total annual NPS visitor WTP within the literature directly based on NPS visitor survey data.
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Acknowledgments
Primary funding for this study was a research grant from the National Park Service Social Science Program. The study benefited substantially from comments on a draft report by Dr. Bruce Peacock. Assistance in data collection and organization and editing was given by Joel Dalenberg and Amy Harvey. Butch Street of the NPS provided data on the NPS system. The authors wish to thank Daniel Hellerstein and Jeffery Englin as well as two other anonymous reviewers for many helpful comments and suggestions. Of course, any errors or omissions are solely the responsibility of the authors.
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Neher, C., Duffield, J. & Patterson, D. Valuation of National Park System Visitation: The Efficient Use of Count Data Models, Meta-Analysis, and Secondary Visitor Survey Data. Environmental Management 52, 683–698 (2013). https://doi.org/10.1007/s00267-013-0080-2
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DOI: https://doi.org/10.1007/s00267-013-0080-2