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Cuadernos de Economía

Print version ISSN 0121-4772

Abstract

CARDENAS, Gina; VARGAS, Andrés  and  DIAZ, David. A 'no' as an answer: Interpretation, treatment and analysis in contingent valuation studies. Cuad. Econ. [online]. 2019, vol.38, n.77, pp.551-579. ISSN 0121-4772.  http://dx.doi.org/10.15446/cuad.econ.v38n77.66319.

The Contingent Valuation Method (CVM) is widely used to assist public decisions. It is worrying, however, that a significant proportion of individuals provide a willingness to pay from scratch, which is not reconcilable with the economic theory. Using three CVM exercises carried out in Colombia, this study examines what motivates these non-economic zeros (protest) responses and their implications for the estimation of monetary values. Our results show that protest responses are supported by ethical and fairness motivations, which should be taken into account in decision making but are ignored if one follows the conventional CVM procedure.

JEL: Q50, Q51, Q57, Q58.

Keywords : Contingent valuation; protest response; preference filtering.

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