Revealed Preferences for Diamond Goods
研究消费者不仅关注商品数量也关注其价值时的购买行为，提出非参数方法测量消费者对商品价值的边际支付意愿（钻石度），并应用于俄罗斯数据发现其与商品社会可见性相关。
When consumers care not only for the quantity but also the value of a product, it could be rational to purchase products as they become more expensive. This study provides nonparametric—revealed preference—conditions to measure consumers' marginal willingness to pay for value (i.e., diamondness) associated with particular goods. This is the first nonparametric test of price-dependent preferences. The proposed diamondness measure is applied to observational data from the Russia Longitudinal Monitoring Survey. The results show that this diamondness measure is related to a product's visibility to society, which indicates a certain degree of conspicuous consumption.