Bills from the floor: why governing party groups initiate their own legislation

In parliamentary systems, why do party groups of the government camp initiate their own bills instead of going through the cabinet? This article suggests that such governing party group bills occur for three reasons: (a) cabinets hand out bills to the parties on the floor; (b) party groups or MPs want to signal to constituencies; or (c) parties on the floor are dissatisfied with cabinet policy making. Arguing that the absolute and relative importance of these explanations varies with institutional context, country-specific hypotheses with regard to the number of governing party group bills in Germany are tested. As expected, mechanisms (a) and (c) are especially important in explaining the occurrence of governing party group legislation in Germany.