Firm-Level Heterogeneous Productivity and Demand Shocks: Evidence from Bangladesh
利用孟加拉国企业出口数据，检验标准异质性企业模型关于贸易政策实验的预测，发现部分预测与数据不符，而企业-市场特定需求冲击能解释这些异常现象。
This paper looks at the predictions of a standard heterogeneous firm model regarding the exports of firms across markets in response to a particular trade policy experiment and compares these predictions to the data. A unique feature of our data is that it has information on the exports of the same firm to different markets which allows us to look for a new set of predictions of such models. We argue that while certain predictions seem consistent with the data, others are not. We then describe the patterns found in the data and argue that firm and market specific demand shocks help explain a number of these anomalies. These parsimoniously capture factors, like business contacts or networks, or even fashion shocks, that make buyers more attracted to one firm rather than another in a particular market.