Environmental regulation, firm heterogeneity, and intra-industry reallocation

We describe a model with firm heterogeneity and endogenous pollution abatement to show how emission intensity and exit/entry selections vary across firms. Using Chinese firm-level emission and production data, we find evidence that low productivity firms have higher emission intensity. The emission intensity of firms with productivity below 10 percentile is 5.26 times larger than firms with productivity above 90 percentile. Combining the Annual Survey of Chinese Industrial Enterprises (CIE) data, and applying a triple-difference research design, we find that firms with high emission intensity or low productivity have a higher probability of exit when exposed to strict environmental policy. We also find the exit of unproductive firms contributes to aggregate productivity and strict environmental policy can help to reduce misallocation.

Automated summary

The study shows that low productivity firms have higher emission intensity, and they are more likely to exit under strict environmental policies, which can contribute to overall productivity enhancement and reduce resource misallocation.