Abstract: | Recent research suggests that committees in parliamentary democracies may, at least partly, be endogenous to the prevalence of coalition government. In this article, I examine the conditions under which parliamentary majorities reform legislative rules to expand or reduce committee power. I expect that, ceteris paribus, the greater the conflict inside the governing coalition, the higher the probability that parties in government will adopt reforms expanding committee power and the lower the chance that they will implement changes reducing such power. These expectations are tested using original new data on the reforms of committee agenda powers undertaken in eight European states within 20 years from democratic transition. I find some evidence to support the endogeneity of committee power to the ideological heterogeneity of parliamentary government. |