So it seems there isn't much that China can do that would boost GDP other than monetizing what would otherwise be social services.
Urbanization will likely drive continued increase in healthcare, housing and transport sectors but that will be tapped out within 10 years as China transitions to a stable 75-80% urbanization rate.
Consumer spending on personal goods is nearing saturation and investment is tapering off as infrastructure is built out. R&D spending is getting close.
So what's the next step? How to raise GDP without destroying the middle class? It seems like all the possible avenues of growth, even software, autos, semiconductors, etc are just so small compared to the frankly ridiculous levels of privatized healthcare, housing and insurance spending.
You raise an interesting question.
I think China could significantly increase healthcare spending on publicly funded General Practitioners for example.
At the moment, it's still very hospital-led, which is not ideal.
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There's like 2 million doctors in China (17 per 10K population).
So if China adds 1 million general practitioners, roughly one-third will be GPs, which looks about right compared to any developed country (excluding the crappy US system of course)
Since GPs spend most of their time on preventative medicine or dealing with minor issues so they don't become major ones, such an upfront investment really pays off in the long-run.
It would mean overall rate of doctors in China would increase 25 per 10K population, which is not excessive compared to developed world countries.
And if each GP costs $100K per year, that is an extra $100Bn, which is 0.5% of GDP.
Plus you've got the upfront costs of building such a system and some years to train the staff, which is the real bottleneck.
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Another thing is myopia (short-sightedness)
My guess is that at any time, you could easily have 100 million children in China who would benefit from overnight contact lenses or special glasses. This would correct their eyesight during the daytime and more crucially, it reduces or eliminates the progression of their myopia (which mostly happens in childhood when their eyes are still growing)
If this was adopted en-masse as a public programme, my guess is that this would cost say $100 each per year, which is a bargain compared to elsewhere. That is still only another $10 Bn.
But I think such a programme would be worth it, as it has long-term benefits which should outweigh the costs.
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Looking at the dentist density in China - they could increase from 245K to 1.2 Mn dentists to reach European levels.
Call it another 1 Mn dentists. Maybe that's another $100K each per year?
So $100Bn (0.5% of GDP)
Again, there will be long-term benefits in terms of preventing serious (and expensive) dental issues arising.
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China's nursing density also looks pretty very low.
So they could aim to double the number of nurses, which means 5 million more.
At $50K each, that would work out as $250 Bn, or 1.25% of GDP.
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The same applies to the physiotherapist density.
To reach European levels would have to increase from 0.140 Mn to 1.9 Mn
At $50K each, that would be $88 Bn, or 0.44% of GDP
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So you could reasonably embark on a programme to build local polyclinics (combining a GP, Dentist, Opticians, Physios) within walking distance in every district.
And because Chinese cities are generally very densely populated, you can build many larger and more efficient polyclinics, which both compete and cooperate with each other.
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So if you total all this up and maybe add some other programmes, that might hit 4% of today's GDP in terms of annual spending. But this doesn't include upfront investment costs and it will take time to train all the staff.
Plus before making such a big expansion, you really want the national health code identification system to be ready, so that all the different healthcare providers can actually communicate with each other.
And the key point is that all these items listed above will result in a healthier population which is also more productive. And that the government sets a reasonable "standard" price for services, but doesn't stop people from choosing to go private and pay more if they wish to, or from opting into a private health insurance plan.
In any case, the return on this sort of government spending should be a large net positive (even in terms of tax revenue alone) in the long term.