CHAPTER 2: Parliamentary law-making in New Zealand governing party (or parties) vote together as a unified bloc in favour of the government. Members of support parties do likewise in accordance with the terms of their confidence and supply agreements. p arty discipline is low in presidential systems, in the United States for instance, primarily because the executive does not need the confidence of the legislature to take and retain office. t his authority comes directly from the electorate, usually for a Not only does party discipline allow governments to hold office, it is also the 2.17 mechanism by which governments ensure that the House approves their annual appropriations (the eBudgetf) to allow government departments and agencies to carry out their various functions. p arty discipline also facilitates the enactment of government legislation by predisposing a majority of the House to vote in favour of government Bills as they pass through the House. o nly once in recent decades has a government suffered the outright defeat of one of its Bills.30 From a governance perspective this is beneficial. It allows governments to implement their chosen polices, while providing the necessary statutory mechanisms for the exercise of good government. party discipline empowers the electorate. parties can appeal to voters on the 2.18 basis that the governing party (or parties) will be able to implement their election policies because a majority of the House will support the governmentfs initiatives.31 Conversely, where party discipline is lacking, and the successful enactment of government measures depends on temporary ad hoc alliances of sufficient numbers of individual M is denied a meaningful choice between alternative governments offering competing sets of policies. e xplicit policy pledges are less effectual if the resulting government lacks the means to achieve them. p arty discipline also promotes political accountability to the electorate. A clear 2.19 demarcation of responsibility for policy is achieved through party-based voting. When legislation is visibly the responsibility of a government, pushed through the House by its disciplined majority, voters can rebuke or reward the government depending on how the polices implemented by the legislation are viewed by the electorate (or at least the majority of it). In the absence of party discipline, accountability to the electorate for legislative 2.20 decisions diminishes significantly. Government measures succeed only because a sufficient number of individual Mps each with their own motivations and justifications align themselves in favour of the proposal. In this sense the decision to enact a Bill is a collective choice of the individual M the House rather than the governing party (or parties) acting as a cohesive unit. Consequently, responsibility for legislation is diffused across the chamber, meaning that voters are less able to punish or reward those responsible for enactment since it may not be clear precisely who this was in any given instanc 30 Local Government Amendment Bill (No. 5) ((1998) 567 NZ p D 8195). o f course, if a government is uncertain as to the level of parliamentary support for a Bill it is likely to delay the Bill until sufficient support can be garnered, or alternatively, allow the Bill to l 31 Jackson, above n 23, 44. 10 Law Commission Report