| Titre | Le traitement des réponses égales à zéro dans l'évaluation contingente | |
|---|---|---|
| Auteur | Brigitte Desaigues, Dominique Ami | |
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Revue | Economie et prévision |
| Numéro | no 143-144, 2000/2-3 Economie de l'environnement et des ressources naturelles | |
| Rubrique / Thématique | Méthodes de l'évalution contingente |
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| Page | 227-236 | |
| Résumé anglais |
Analysing Responses at Zero in Contingent Valuation by Dominique Ami and Brigitte Desaigues
Contingent valuation is often used to put a price on natural assets. Econometric analysis of values obtained by this direct method of preference revelation raises problems due to the high proportion (generally around 50%) of zero values. Various methods of analysing responses at zero can be considered in the case of open-ended questions. Here three models are studied, tested econometrically and compared: the linear regression model, the Heckman model, and the Tobin model. The microeconomic attitudes underlying each of these models are also examined. The object of the paper is to show that use of the Tobin model is not relevant since zero values cannot be treated uniformly in the same way as censored values. Source : Éditeur (via Persée) |
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| Article en ligne | http://www.persee.fr/web/revues/home/prescript/article/ecop_0249-4744_2000_num_143_2_6105 |
