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    Author(s): Donald B.K. English
    Date: 1997
    Source: The Review of Regional Studies, Vol. 27, No. 3, Winter 1997
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (208 KB)


    Estimates of the economic impacts of recreation often come from spending data provided by a self-selected subset of a random sample of site visitors. The subset is frequently less than half the onsite sample. Biased vectors of per trip spending and impact estimates can result if self-selection is related to spending pattctns, and proper corrective procedures arc not employed. This paper shows a method for accounting for both sample selection and the censored nature of reported expenditures, via a Tobit model with sample selection. Results from a sample of visitors to Cumberland Island National Seashore indicate a naive (uncorrected) approach overestimates per trip visitor spending by 15 percent and economic impacts to industrial output by 10 percent.

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    English, Donald B.K. 1997. Effects of Sample Selection on Estimates of Economic Impacts of Outdoor Recreation. The Review of Regional Studies, Vol. 27, No. 3, Winter 1997

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