Why doesn't China make a deal with North Korea to take in refugees in exchange for access to their markets?
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Would it be a good idea in the long term?
I don't see why China wouldn't want to take in North Korean refugees into the neighboring provinces of China and allow for 10s of thousands of North Koreans to be assimilated into China as well as increase business into North Korea to help both the Chinese and North Korean economies.
Manufacturing plants could be built, farming could be better handled with Chinese help, and North Koreans as a whole could become more prosperous.
Decades from now, if this type of policy were to be enacted, the economy improved in North Korea, North Korea would be able to choose, through a massive democratic process, between:
1. reunification with South Korea under a healthy economy dominated by a mix of domestic companies and Chinese companies, or
2. a type of solely economic union between North Korea and China where North Korea keeps all of its sovereignty or,
3. North Korea would become an autonomous province under China's leadership.
North Korea has some markets, China will need to of course make new markets though, infrastructure projects, factories for manufacturing products would be introduced in large numbers, better farming techniques could be introduced.
I think China could help North Korea an enormous amount at the moment.
Would it really anger neighbors in the region if China pursued a policy of increasing North Korea's economic stability as well as getting it to stop its rhetoric against South Korea, Japan, and the US?
Well, the spending on the nuclear program can change as China currently has the power to collapse the North Korean regime at any given time just by closing the border into North Korea and refusing it aid.
China could influence the government of North Korea to follow certain rules in relation to its spending, especially on the nuclear program, although once such influence is used, it will be march harder to influence the actions of North Korea's government in the future so the influence should be used with considerable though the first time through.