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ارزیابی مشروط
Finally, contingent valuation methods based on careful surveys may under some conditions be an appropriate procedure to elicit individuals' willingness to pay for viewing art.
As the essential assumptions required by the two approaches just discussed are in many cases not sufficiently met in practice to make the respective methods seriously applicable, most economists have turned to "Contingent Valuation" (CV).
2.3 Contingent Valuation Surveys 185
2.3 Contingent Valuation Surveys
A politically important recent Contingent Valuation study (Carson et al. 1992) has been used to measure the environmental damage caused by the supertanker Exxon Valdez, which ran aground in March 1989 in Prince William Sund, Alaska, spilling 11 million gallons of crude oil into the sea.
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