Krugman pointed out [1] that 10% of US GDP is in tech counties and Manhattan, with 4.4% of employment. I wonder if productivity growth is mostly there too? [1

Krugman pointed out [1] that 10% of US GDP is in tech counties and Manhattan, with 4.4% of employment. I wonder if productivity growth is mostly there too? [1] https://bsky.app/profile/pkrugman.bsky.social/post/3lcii6zna2k2d https://bsky.app/profile/pkrugman.bsky.social/post/3lcii6zna...