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Incidentally, 1979 is about when Krugman last did good economic work.
this made me lol
It was good work, though.
totally - I almost commented something similar on a different post. The work he won the nobel for is very interesting. Or at least I remember thinking that back when I read it. In general, his work in international economics is much stronger than anything else.
https://www.nobelprize.org/prizes/economic-sciences/2008/krugman/facts
1979 theory on international trade: similar countries produce similar products
It offered a theoretical solution to a well known discrepancy between a well established empirical regularity and the classical trade theory of the time.
Other (better in my opinion) solutions have been developed since, but his work was interesting.
This argument was used in the 1960s until 1979 stagflation debunked the Philips curve