“…Still, several recent studies, based on a political economy approach, postulate that the trade's effect on environmental regulation depends on the size of the relative shifts in the political power of industrial and environmental lobby groups, which is further determined by a country's comparative (dis)advantage in the polluting sector [12,13], the extent of substitution between foreign and domestic goods [14], the distribution of production factor ownership [15], who, producers or consumers, ultimately generates pollution [16], domestic political constraints, and the issue visibility of the pollutant [17], or quality and structure of political institutions [18,19]. It is thus not clear ex ante whether, and to what extent, trade would influence environmental regulation stringency.…”