Party Differentiation and Legislative Review in Coalition Government

Coalition governance requires compromise and this compromise can lead to electoral losses. In this essay I argue that coalition parties are motivated to differentiate themselves from their partners in order mitigate possible electoral losses resulting from voters perceiving them as too cooperative, not rigorously pursuing their core policy positions, or selling out. I support this argument with original data on the legislative review process in Belgium, Denmark, and the Netherlands that incorporates data on voter perceptions of partisan ideology. I find that coalition parties amend the legislation of their partners more freely when they are perceived by voters as growing more similar to their partners --- an indication that voters perceive an overly accommodative policy process; i.e., that the parties are not vehemently pursuing their core policies. The findings presented here improve our understanding of the legislative review process and the relationship between parties and voters in coalitional systems. This essay is also novel in that it is the first essay to incorporate voters directly into a comparative empirical model of legislative behavior, rather than simply assuming an electoral connection.