China does not need external (as in 'foreign') investment. They have huge amounts of cash.
The strategy seems more about decoupling and independence from foreign interference and potential sanctions. Likewise, when foreign investors leave it is also because they've seen what was done to Russia and thus don't want to repeat that with China, which would be massively more costly.
Edit with data:
In 2022 Chinese households accumulated $1tn in savings, just over that year (this is something typical in China because of lack of safety net and lack of investments avenues, hence also why everyone wants to buy property to invest their cash):
https://www.crugroup.com/knowledge-and-insights/spotlights-b...
They have massive amounts of debt and it's becoming a problem which is likely one of the reasons they're trying to hide the data. It's provincial debt and state company debt which is mainly internal so I don't really understand the implications of it.
They do? Probably should tell the average citizens in China who are having trouble withdrawing cash out then https://www.youtube.com/watch?v=s9odXNPldCI. I think some banks were kind enough to tell their customers to withdraw in a few months. Other banks just zeroed out their customer's bank account.
$1tn in savings is $660 per person over an entire year? I know purchasing power is a big thing but I’m not sure whether to interpret this as a large amount or not.
Yeah, I wasn't clear. They talk about "excess savings", which, as far as I understand, are additional savings relative to baseline, so total amount of money saved should be much higher.
China has a long history of closing itself away against foreigners and their disruptive ideas, yes. It also has a long history of stagnation caused by the same.
At the end of the day, "wanting to be a superpower on par with the US or greater" and "isolating yourself from barbarians" are two incompatible goals. Superpowers need to build coalitions and attract allies; this cannot be done without some mixing of the involved nations, even if it just concerned students, businesspeople, investors, soldiers and diplomats.