Reading this entry by pettis helps me see my suspicions about China are probably spot on.
http://mpettis.com/2009/11/lecturing-each-other-on-trade/
1) gov't policies have encouraged investment over consumption
2) the gov't has excess revenue or savings which they use to invest in productive capacity (ie. factories etc...) & to continue weakening its currency (mercantilist stance) e.g. see wiki on mercantilism:
Hume famously noted the impossibility of the mercantilists' goal of a constant positive balance of trade[citation needed]. As bullion flowed into one country, the supply would increase and the value of bullion in that state would steadily decline relative to other goods. Conversely, in the state exporting bullion, its value would slowly rise. Eventually it would no longer be cost-effective to export goods from the high-price country to the low-price country, and the balance of trade would reverse itself. Mercantilists fundamentally misunderstood this, long arguing that an increase in the money supply simply meant that everyone gets richer.[22]
The importance placed on bullion was also a central target, even if many mercantilists had themselves begun to de-emphasize the importance of gold and silver. Adam Smith noted at the core of the mercantile system was the "popular folly of confusing wealth with money," bullion was just the same as any other commodity, and there was no reason to give it special treatment.[23] More recently, scholars have discounted the accuracy of this critique.
Wiki doesn't specify what the critique is (unfortunately), but some of this makes sense and the reason there's no correction is because of the neo-mercantilist strategy of using the bullion/fx reserves to weaken the yuan in this case (thereby delaying the necessary correction). Also in Pettis' post he mentions research about an NBER (
Moritz Schularick and Alan M. Taylor have a new NBER Working Paper, “Credit Booms Gone Bust: Monetary Policy, Leverage Cycles and Financial Crises, 1870–2008.”) working paper that discusses bubbles they studied were equally likely to happen from excess credit or excess investment.
What I haven't found an answer to is why the Chinese gov't pursues these policies? At first I thought it was to keep the laborers poor and help the Communist party continue to amass wealth (in the form of commodities, fx reserves, and productive capacity) with the idea that this was the best path to preserve the current political power structure. Now I think they Chinese gov't is pursuing these policies to keep employing more and more people because employment, in a non-farming setting, maybe more important than an increase in the standard of living.
The US could, in effect, spend the excess savings in China through deficit spending/printing money but the Chinese say they don't want this. I see three ways this could play out:
1) China expects the US to come out of this recession and through new industries re-employ it's people and for the positive surplus mercantilist machine to continue in China. Unlikely
2) China allows its currency to appreciate slowly, it's people begin to buy more products from the US/world, China realizes comparative advantage works and they can focus on certain industries, the US currency weakens in a controlled fashion, jobs return to the US/the rest of the world in sectors where the US has an advantage. Rosy scenario. The risks to this is what will happen to Communist power as this progresses?
3) Scary scenario: The US puts up tariffs, demand falls precipitously in China and retaliates by selling US treasuries en masse, US interest rates sky rocket, the dollar crashes, hyper inflation settles into the US and an unheard of growth in employment and rebuilding of productive capacity in the US, US domestic demand sky rockets, and imports implode. China not only loses its investment in US treasuries/dollars/commodities, it also loses on its investments as all of its factories become useless and workers unemployed.