Diamond, P.A. and Hausman, J.A. (1994) Contingent Valuation: Is Some Number Better Than No Number? Journal of Economic Perspectives, 8, 45-64.
https://doi.org/10.1257/jep.8.4.45

has been cited by the following article:

• TITLE: RETRACTED: Altruism and Willingness to Pay for Environmental Goods: A Contingent Valuation Study

  AUTHORS: Takehisa Kumakawa

  KEYWORDS: Contingent Valuation, Altruism, Wetlands

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.5 No.6, June 14, 2017

  ABSTRACT: The paper does not meet the standards of "Journal of Geosciences and Environment Protection". This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused. Editor guiding this retraction: Prof. Valentine Udoh James (EiC of GEP). Please see the article page for more details. The full retraction notice in PDF is preceding the original paper which is marked "RETRACTED".