পদ্ধতির তুলনা করুন

	Benefit Transfer Method	Contingent Valuation Method
ক্ষেত্র	অর্থনীতি	অর্থনীতি
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1992	1963
প্রবর্তক	Applied environmental-economics practice (formalized by Boyle & Bergstrom; Rosenberger & Loomis)	Robert K. Davis (early use); methodology codified by the NOAA panel
ধরন	Secondary valuation: transferring existing estimates to a new policy site	Survey-based stated-preference valuation method
মৌলিক উৎস	Rosenberger, R. S., & Loomis, J. B. (2003). Benefit transfer. In P. A. Champ, K. J. Boyle, & T. C. Brown (Eds.), A Primer on Nonmarket Valuation. Kluwer/Springer. ISBN: 9780792364986	Hanemann, W. M. (1994). Valuing the environment through contingent valuation. Journal of Economic Perspectives, 8(4), 19–43.
অপর নাম	Benefit Transfer, Value Transfer, Unit Value Transfer, Benefit Function Transfer	CVM, Stated-Preference Valuation, Willingness-to-Pay Survey, Survey-Based Non-Market Valuation
সম্পর্কিত	4	2
সারসংক্ষেপ	Benefit transfer is the practice of estimating the economic value of a nonmarket good — clean water, a recreation site, an endangered species, an avoided health risk — at a new 'policy site' by adapting value estimates from one or more existing 'study sites' where primary valuation research was already conducted. Because original contingent-valuation, choice-experiment, or hedonic studies are expensive and slow, analysts facing limited time and budgets transfer existing results, ranging from simply borrowing a single dollar value (unit value transfer) to transplanting an entire estimated valuation function (function transfer) or predicting from a meta-regression of many prior studies.	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.