“…Legislators may hold basic preferences that influence their behaviour, but they may also forego their preferences in favour of party discipline and thereby promote the party's ability to control the legislative agenda (Lawrence, Maltzman, & Smith, 2006). The literature has explored how party behaviour in parliament is affected by whether a party is in opposition rather than in government (Hix & Noury, forthcoming), by party platforms (Libbrecht, Maddens, Swenden, & Fabre, 2009) and policy heterogeneity within parties (Dewan & Spirling, 2011).…”