Journal
ENVIRONMENTAL MANAGEMENT
Volume 43, Issue 6, Pages 1146-1161Publisher
SPRINGER
DOI: 10.1007/s00267-008-9253-9
Keywords
Travel cost method; Multi-purpose trips; Multi-destination trips; Count data; Consumer surplus; Endogenous stratification
Categories
Funding
- Parks Canada
- ACOA
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One of the basic assumptions of the travel cost method for recreational demand analysis is that the travel cost is always incurred for a single purpose recreational trip. Several studies have skirted around the issue with simplifying assumptions and dropping observations considered as nonconventional holiday-makers or as nontraditional visitors from the sample. The effect of such simplifications on the benefit estimates remains conjectural. Given the remoteness of notable recreational parks, multi-destination or multi-purpose trips are not uncommon. This article examines the consequences of allocating travel costs to a recreational site when some trips were taken for purposes other than recreation and/or included visits to other recreational sites. Using a multi-purpose weighting approach on data from Gros Morne National Park, Canada, we conclude that a proper correction for multi-destination or multi-purpose trip is more of what is needed to avoid potential biases in the estimated effects of the price (travel-cost) variable and of the income variable in the trip generation equation.
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