We propose a structural econometric model that incorporates altruism towards other household members into the willingness to pay for a public good. The model distinguishes preferences for public good improvements for oneself from preferences for improvements for other household members. We test for three different types of altruism - ‘pure self-interest’, ‘pure altruism’ and ‘public-good-focused non-pure altruism’. Using French contingent valuation data regarding air quality improvements, we find positive and significant degrees of concern for children under the age of 18, which are explained by determinants related to health and subjective air quality assessment. All other forms of pure or air-quality-focused altruism within the family are insignificant, including for children over 18, siblings, spouses, and parents. This result suggests that benefit estimates that do not consider altruism could undervalue improvements in air quality in France.

我们提出了一种结构计量经济学模型，该模型将利他主义对待其他家庭成员纳入了支付公共物品的意愿中。该模型将对自己的公共物品改善的偏好与对其他家庭成员的改善的偏好区分开来。我们测试了三种不同类型的利他主义-“纯利己主义”，“纯利他主义”和“关注公共利益的非纯利他主义”。使用有关空气质量改善的法国或有评估数据，我们发现18岁以下儿童受到积极和严重的关注，这由与健康和主观空气质量评估有关的决定因素来解释。家庭中所有其他形式的以纯净或以空气质量为中心的利他主义都是微不足道的，包括18岁以上的孩子，兄弟姐妹，配偶和父母。