New Zealand’s triennial general election, the fourth held under the Mixed Member Proportional Representation (MMP) system first introduced in 1996, will be held Sept. 17. Whereas Helen Clark’s Labor-led coalition (in office since 1999) easily won re-election in 2002, this time the center-right National Party (led by former Central Bank Gov. Don Brash) is mounting a strong challenge, foreshadowing what the Australian Financial Review suggests will be “the liveliest election campaign for many years.”