Re: China should encourage academic exchanges?
I first came across this a few years ago when a (ex) Chinese colleague got married. To his in-laws he's the 'poor relation' because while salaries in China are similar to California both taxes and the cost of living are a lot lower.
That was a few years ago when housing was still somewhat affordable here. It was the ambition of a typical Chinese middle class household to own property here, not to live in but as a sort of hedge against unfavorable exchange rate changes. Then we got Trump, wholesale open xenophobia and the meteoric push in housing prices....and the rest, as they say, is history.