Productivity Dynamics and the Role of ‘Big‐Box’ Entrants in Retailing
使用动态模型分离需求影响，研究大型商店进入对在位零售商生产率的作用，发现进入后生产率提升，且提升幅度随生产率分布上移而递减。
We use a dynamic model to measure the impact of the entry of large stores on incumbents’ productivity separate from demand while accounting for local markets and the endogeneity of entry. Using data on all retail food stores in Sweden, we find that incumbents’ productivity increases after the entry of large stores and that the magnitude of the increase declines toward the upper part of the productivity distribution. Our findings highlight that large entrants drive productivity.