后经验品Post-experience good),也称信用品Credence good),在经济学中,是指一类产品或服务的特征很难被消费者观察判断,即使在开始消费后的短期内。比如维生素片教育等。

根据飞利浦·尼尔森Phillip Jacob Nelson)的分类学,其与搜寻品Search good)、经验品Experience good)相区别,此类区分可以从理论上根据商品的特征,反映出信息不对称和市场的失灵[1],也可以部分解释自然垄断的形成[2]

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