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| Μέθοδος Εκτίμησης Βάσει Δήλωσης Προτίμησης (Contingent Valuation Method)× | Μέθοδος Κόστους Ταξιδιού× | |
|---|---|---|
| Πεδίο | Οικονομικά | Οικονομικά |
| Οικογένεια | Process / pipeline | Process / pipeline |
| Έτος προέλευσης≠ | 1963 | 1949 |
| Δημιουργός≠ | Robert Davis | Harold Hotelling |
| Τύπος≠ | Stated preference valuation method | Revealed preference recreation demand model |
| Θεμελιώδης πηγή≠ | Mitchell, R. C., & Carson, R. T. (1989). Using Surveys to Value Public Goods: The Contingent Valuation Method. Resources for the Future. link ↗ | Hotelling, H. (1949). An Economic Study of the Monetary Valuation of Recreation in the National Parks. U.S. Department of Interior, National Park Service. link ↗ |
| Εναλλακτικές ονομασίες | CVM, Willingness-to-Pay Survey, WTP Elicitation | TCM, Recreation Demand Model, Zonal Travel Cost |
| Συναφείς≠ | 3 | 2 |
| Σύνοψη≠ | Contingent Valuation (CVM), developed by Robert Davis in the 1960s, is a survey-based method for estimating the economic value of non-market environmental goods and services—such as wilderness preservation, air quality, or species protection—by directly asking people their willingness to pay (WTP) for specified improvements or willingness to accept (WTA) compensation for losses. It provides a valuation where market prices do not exist. | 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. |
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