Eliciting Preferences for Public Goods in Nonmonetized Communities: Accounting for Preference Uncertainty
研究在巴布亚新几内亚的非货币化小社区中，比较用劳动时间与金钱作为支付方式时，人们对当地公共物品的贡献意愿不确定性，发现用时间替代金钱能降低不确定性。
Labor time has been proposed as an alternative payment vehicle in eliciting preferences for public goods in nonmonetized communities. However, we so far have no empirical evidence for situations where the labor-time elicitation format reduces the respondent’s contribution uncertainty. In this study we compare the uncertainty of people’s stated willingness to contribute time and money for a local public good in a nonmonetized small-scale community in Papua New Guinea. We find that independently of conversion issues, uncertainty is reduced when respondents are asked to contribute time instead of money. Moreover, we find that risk aversion, risk apprehension, and risk exposure are significant predictors of uncertainty. <i></i>