Format
A dataframe containing :
- visits
- annual number of visits to lake Somerville
- quality
- quality ranking score for lake Somerville
- ski
- engaged in water--skiing at the lake ?
- income
- annual household income
- feeSom
- annual user fee paid at lake Somerville ?
- costCon
- expenditures when visiting lake Conroe
- costSom
- expenditures when visiting lake Somerville
- costHoust
- expenditures when visiting lake Houston
Source
Seller, Christine, John R. Stoll and Jean--Paul Chavas (1985) “Valuation of empirical measures of welfare change : a comparison of nonmarket techniques”, Land Economics, 61(2), may, 156--175. Gurmu, Shiferaw and Pravin K. Trivedi (1996) “ Excess zeros in count models for recreational trips”, Journal of Business and Economics Statistics, 14(4), october, 469--477. Santos Silva, Jao M. C. (2001) “A score test for non--nested hypotheses with applications to discrete data models”, Journal of Applied Econometrics, 16(5), 577--597.