Good points, all.
Some other pressing Chinese problems are their banking system which has structual issues and huge amounts of non-performing loans (marked on the books as profitable, of course), and the environment. One the first issue, at least the large savings rate gives a buffer to the painful restructuring process that can only be put off for so long. On the environment, for the first time ever, they have given their government more authority for regulation. It is weak but growing. That said, so many citizens are buying cars now that even if they reduce emissions per vehicle / person, if the vehicles and energy consumption continue to increase so quickly, you can actually have a worse environment even while increasing regulation (not to mention whether the government can even efficiently control it that well in the first place).
That said, I think China has a bright future. I think there is probably even a 1 in 3 chance that within 20-30 years, they will have a more free market government than the US/Europe/Japan. Should be interesting. In any case, it looks like at a minimum they are making great progress moving from Communism to more of a Mixed Market economy like Sweden's. It is more of a question of once they hit that level, will they keep on cutting government (in terms of % of GDP) or will they stabilize at that point? I don't know. In general, I think that China's ability to grow its wealth and productivity is good. It is great for the billion + citizens there.. so I am very happy in that sense, it is too bad the impoverished people in many African countries don't use China as a role model for economic development.
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-Taric