Levinson, Arik (contributor); … - 2004 - [Elektronische Ressource]
abatement costs as a proxy for direct measures of regulation.
We detail the set of conditions a successful instrument must … imports from Canada. When we instrument for pollution
abatement costs, we find larger effects. The same 1 percent increase ….
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With fixed effects included, our instrument must have both time and sector
variation; it must be correlated with …