I get why that period looks successful on the surface, and I donβt disagree that some of those policies were positive moves.
Yes, the Clark Govt invested in universities and training, lifted infrastructure and state housing spending, introduced Working for Families, set up the Super Fund, and talked up R&D. Those werenβt nothing. But scale and sequencing matter, and this is where I think the story gets misread.
That model was a false economy. Public debt fell largely because private debt rose. It looked prudent at the time, but it relied on households carrying more and more of the risk.
Once that capacity is used up, the model stops working. Thatβs where we are now. With private debt already high, even modest Govt pullbacks donβt create efficiency, they create contraction.
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This shows the constraint clearly. Household debt rose much faster than incomes through the 2000s. Growth was being supported by households taking on more debt, not by rising wages or productivity. Once that ratio stops climbing, the growth engine stalls.
What made the 2002β2008 period look strong wasnβt uniquely good management. It was a specific mix of conditions: relatively low household debt at the start, rapid private credit growth largely through housing, strong population growth and immigration, and a fairly stable global backdrop. That made it possible to run surpluses while the private sector was borrowing heavily. The state wasnβt building a new growth engine; it was largely riding the one already in place.
So when you say they βused a solid private sector to invest heavily in the public sector,β the causality is partly reversed. Private expansion came first, driven by debt rather than productivity, and public investment mostly stayed within orthodox surplus and debt limits.
As Iβve been explaining in the earlier replies, orthodox economics still treats Govt finance as if the state were financially constrained like a household. Reading surpluses and falling public debt as signs of economic health, without looking at whatβs happening to productive capacity underneath, leads to the wrong conclusions about whatβs actually sustainable.
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You can also see where that debt went. House prices ran well ahead of incomes, which tells you a large share of the borrowing flowed into housing and land rather than into expanding productive capacity.
Thatβs why so much of NZβs growth has been people buying and selling houses to each other, rather than building lasting productive capacity.
This also shows up when you look at innovation.
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Despite the rhetoric, NZβs R&D spending stayed around half the OECD average throughout that period. There was some growth, but it was incremental and never closed the gap. Being pro-innovation in principle isnβt the same as investing at a scale that actually shifts the economyβs productive base.
The common thread across housing, infrastructure, skills, and R&D is that public investment mostly ran at or near maintenance levels, while growth was driven by a private credit boom, especially in housing. That can work for a while, but it leaves you with high household debt and very little spare capacity when conditions change.
The proof is what followed. Once household debt stopped rising, growth slowed. Govts then tried to repeat the same model by pulling back further and hoping the private sector would do more with less. It canβt. Weβre now left with higher private debt, deferred infrastructure, stressed public services, and far less room to absorb shocks.
So the lesson from that era isnβt βthis is the standard to return to.β Itβs that the model worked while households still had room to take on more debt. That space is gone.