It has been suggested that an intensified trade war between China and the US could reduce CO2 emissions associated with exports. We develop an export-greenfield-endogenous merger model, showing that significantly increased tariffs can enable domestic firms to undertake entry-deterring...

We estimate the effect of the staggered adoption of carbon pricing policies across the globe between 1990 and 2017 on per capita CO2 emissions from fossil fuel combustion. Applying recent econometric techniques robust to treatment effect heterogeneity, we find reductions of 8 to 12 percent on...