Travel Cost Method
The Travel Cost Method (TCM), developed by Harold Hotelling in 1949 and formalized by Marion Clawson and Jack Knetsch in the 1960s, is an econometric approach for valuing recreational sites and environmental amenities by inferring value from the travel costs (transportation, time, entry fees) that people incur to visit them. The core principle is that distance traveled and travel costs reveal how much people value a recreation site: those traveling far incur high costs, implying high value.
Rekodi ya chanzo
Nukuu zimehamishwa kwa uhalisi kutoka kwa rekodi ya chanzo cha mbinu. Hakuna uthibitisho wa kiwango cha dai unaodokezwa kutoka kwao.
- Hotelling, H. (1949). An Economic Study of the Monetary Valuation of Recreation in the National Parks. U.S. Department of Interior, National Park Service. · URL
- Clawson, M., & Knetsch, J. L. (1966). Economics of Outdoor Recreation. Johns Hopkins Press. · URL
- English, D. B., Kellogg, F. W., & Larson, D. M. (2003). Estimating the Value of Protecting Forests from Fire. Journal of Forest Economics, 9(3), 51–73. · URL
Madai yaliyotunzwa
Madai yamehifadhiwa katika daftari la ushahidi, kila moja ikiwa na tathmini yake.
Mwonekano huu haubuni tathmini ya dai wakati daftari haina yoyote.
Mbinu zinazohusiana
Zilizotengenezwa kutoka kwa grafu ya mbinu na kuonyeshwa kama uhusiano uliopendekezwa na mashine — hakuna dai la ushahidi linalodokezwa.