RT @hbdchick: serious downward mobility a la gregory clark historically in china

RT @hbdchick: serious downward mobility a la gregory clark historically in china. now that’s what you call selection! from Land Reform in C…


Source date (UTC): 2020-02-15 01:23:33 UTC

Original post: https://twitter.com/i/web/status/1228489993473208327

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