It would be a surprise if New Zealanders change the government tomorrow. Even in the age of MMP, it has taken an economic shock or meltdown to move voters to throw out the incumbents. Changes in 1984 (Muldoonist folly), 1990 (the cataclysmic effects of the 1987 stockmarket crash) 1999 (the Asian economic crisis) and 2008 (New Zealand entering recession and the global credit crunch) followed turndowns which affected New Zealanders in their pockets, jobs and confidence.
Political parties argue over the direction and state of the economy, but no reasonable observer believes New Zealand is in a severe economic downturn, or facing global convulsions of the sort experienced before elections that have produced change.
National has steered the economy through the global financial crisis and the effects of the Canterbury earthquakes towards a fiscal surplus, so this election is its to lose. Unemployment has fallen and is not high by past thresholds. Interest rates are up, but again lower than when they have scared voters. Fonterra's international prices are falling and will shave some of the 2.5 to 3 per cent growth predicted for coming years. But growth there should be, because of the Christchurch rebuild and Auckland construction efforts planned by both sides of politics. Today's Herald-DigiPoll survey shows 58.2 per cent of voters saying the country is going in the right economic direction, up 4.3 points, compared with 36.3 per cent saying it is going wrong.
The issue rated most likely to influence voters tomorrow was economic management, on 36.9 per cent - about as high as the next three biggest factors combined.