Within the last few decades, rising environmental concerns, particularly about global climate change, have forced policy-makers to act in an effort to mitigate further harm. Yet though greenhouse gas emissions and the wasteful use of natural resources are detrimental to the environment,...

This paper shows that import exposure affects voting behavior because it affects local labor markets. We develop a new framework for mediation analysis where one instrumental variable is sufficient to identify three causal effects. Using German data from 1987-2009, we find that import exposure...