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A General Model of Starting Point Bias in Double-Bounded Dichotomous Contingent Valuation Surveys


  • 研討會日期 : 2005-04-26
  • 時間 : 15:00
  • 主講人 : Prof. Chien, Yu-Lan
  • 地點 : B棟110室
  • 演講者簡介 : Prof. Chien, Yu-Lan為美國加州大學戴維斯分校農業經濟博士。。 現為臺北大學資源管理研究所專任助理教授。。 其主要研究領域為HF經濟學、環境經濟學、資源經濟學、福利經濟學。
  • 演講摘要 : This paper develops a general model that addresses the starting point bias in the dichotomous choice evaluation data by incorporating both the anchoring effect and yea-saying bias. The model is applied to a contingent valuation study that evaluated the health benefits of air quality improvement in three major metropolitan areas in Taiwan. The empirical evidence shows a strong anchoring effect but an insignificant yea-saying bias. The results show a serious understated willingness to pay if the biases in anchoring and yea-saying are not controlled.