قارن الطرق

	طريقة التقييم المشروط	Contingent Valuation Method
المجال	الاقتصاد	الاقتصاد
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1963	1963
صاحب الطريقة	Robert Davis	Robert K. Davis (early use); methodology codified by the NOAA panel
النوع	Stated preference valuation method	Survey-based stated-preference valuation method
المصدر التأسيسي	Mitchell, R. C., & Carson, R. T. (1989). Using Surveys to Value Public Goods: The Contingent Valuation Method. Resources for the Future.	Hanemann, W. M. (1994). Valuing the environment through contingent valuation. Journal of Economic Perspectives, 8(4), 19–43.
الأسماء البديلة	CVM, Willingness-to-Pay Survey, WTP Elicitation	CVM, Stated-Preference Valuation, Willingness-to-Pay Survey, Survey-Based Non-Market Valuation
ذات صلة	3	2
الملخص	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 contingent valuation method (CVM) is a survey-based stated-preference technique for estimating the economic value people place on goods that are not traded in markets — clean air, an endangered species, a wilderness area, the existence of a natural resource. Respondents are presented with a carefully constructed hypothetical scenario and asked how much they would be willing to pay for a described change in provision; their answers are used to estimate mean or median willingness to pay, including non-use (existence) values that no market reveals.