“…Scholars have focused on various institutional variables to explain variations in judicial policy-making over time and among countries: constitutional rigidity (Alter, 1998: 135–42, 2001: 195–8; Lijphart, 1999: 228–30; Stone Sweet, 2004: 25–6); the ideological distance between the disputants or between that of the legislative majority and the opposition when the latter challenges a law before the courts (Stone Sweet, 1999); the number of veto-players in the legislative or constitution-amending process (Tsebelis, 2002); the policy preferences of the legislature and the executive (Eskridge, 1991a, b; Volcansek, 2001); public support (Lijphart, 1999: 216–31; Volcansek, 2000: 11; Vanberg, 2001, 2005); or precedents (see Spaeth and Segal, 1999; Shapiro and Stone Sweet, 2002: ch. 2; Stone Sweet, 2004).…”