Entry Barriers, Idiosyncratic Distortions, and the Firm Size Distribution
研究了企业进入壁垒与资源配置扭曲的相互作用，通过跨国企业规模分布差异推断进入壁垒，发现中低收入国家的壁垒远高于发达经济体，且监管指标低估了消除壁垒带来的生产率提升。
This paper studies the interaction between barriers to firm entry and distortions to allocative efficiency in a standard model of firm dynamics. We derive a strategy to infer entry barriers based on cross-country differences in the firm size distribution and idiosyncratic distortions. The inferred barriers resemble regulation-based indicators in advanced economies but are substantially higher in middle- and low-income countries. Regulation-based indicators cannot account for cross-country differences in average firm size and underestimate the aggregate productivity gains associated with their removal by up to 8 percent on average.