The Greens' sudden about-turn on printing money is one of the strongest indicators yet of their determination to be exercising power as a party in Government after next year's election.
Russel Norman's retreat on his previous advocacy of so-called "quantitative easing" as a means of reducing pressure on the New Zealand dollar is evidence aplenty of a new pragmatism whereby the party is now willing to drop a policy if that policy is less than essential and risks handicapping centre-left efforts to defeat National.
However, the backdown may also be a sign that the Greens are getting nervous about Labour and whether that party now has a preference for a coalition deal with Winston Peters and NZ First - thereby leaving the Greens out in the cold once again. Labour has described the Greens' stance on quantitative easing as "unhelpful". The last thing the Greens want to do is give Labour excuses for striking a deal with Peters and not them.
National has relentlessly exploited voters' fears of the potential inflationary impact of quantitative easing with Finance Minister Bill English constantly cracking jokes at the Greens' expense by claiming they would fill the Beehive with colour photocopiers if they won power.
The policy is a good deal more complex than that and has been widely adopted overseas as a tool to stimulate activity in recession-hit economies such as the United States, Japan and Britain.