Business Environment, Exports, Ownership, and Firm Performance
利用两个大样本数据，评估商业环境约束、竞争、出口导向和所有权对企业绩效的影响，发现商业约束影响很小，而国家固定效应更为重要。
We use two large samples of firms to assess the effects of business environment constraints, competition, export orientation, and ownership on firm performance. We deal with omitted variables, errors in variables, and endogeneity, and find that few business constraints affect performance. Replicating the analysis with Doing Business and Heritage Foundation indicators of the business environment yields similar results. In fact, country fixed effects, reflecting time-invariant differences in the business environment as well as other factors such as health care and education, matter more for firm performance than differences in the business environment across firms within countries.