Income Differences and Prices of Tradables: Insights from an Online Retailer

I study the positive relationship between prices of tradable goods and per-capita income. I develop a highly tractable general equilibrium model of international trade with heterogeneous firms and non-homothetic consumer preferences that positively links prices of tradables to consumer income.

本文研究可贸易商品（tradable goods）价格与人均收入（per-capita income）之间的正向关联关系。本文构建了一个高度易处理的、包含异质性企业（heterogeneous firms）与非位似消费者偏好（non-homothetic consumer preferences）的国际贸易一般均衡模型（general equilibrium model），该模型可建立起可贸易商品价格与消费者收入之间的正向关联。