The decade from 2010 to 2019 marked a significant turning point in China’s history of environmental regulation and pollution. This article describes the recent trends in air and water quality, with a focus on the five years since China declared a “war on pollution” in 2014. It summarizes...

Regulators often rely on self-reported data to determine compliance. Tolerance for missingness in self-monitoring data may create incentives for local agents to strategically decide when (not) to monitor regulated activities. This paper builds a framework to detect whether local governments skip...

The decade from 2010 to 2019 marked a significant turning point in China's history of environmental regulation and pollution. This article describes the recent trends in air and water quality, with a focus on the five years since China declared a "war on pollution" in 2014. It summarizes the...

Efficient pollution regulation equalizes marginal abatement costs across sources. We study a new flaring regulation in North Dakota and document its efficiency. The regulation reduced flaring 4 to 17 percentage points, accounting for most of the observed flaring reductions at new wells in the...

Efficient pollution regulation equalizes marginal abatement costs across sources. Here we study a new flaring regulation in North Dakota's oil and gas industry and document its efficiency. Exploiting detailed well-level data, we find that the regulation reduced flaring 4 to 7 percentage points...

Efficient pollution regulation equalizes marginal abatement costs across sources. Here we study a new flaring regulation in North Dakota's oil and gas industry and document its efficiency. Exploiting detailed well-level data, we find that the regulation reduced flaring 4 to 7 percentage points...