Many have complained lately that US industries are too concentrated. Yet simple formal models of firm entry tend more to find that too MANY firms enter, not too FEW. So what theory model do these complainers have in mind? https://www.overcomingbias.com/2019/09/whats-so-bad-about-concentration.html …
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That's a phrase not a model.
converting it to a model takes all of 1 second for anyone a with a brain.
Average price.
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My blog post is clear that I'm asking for a game theoretic model which predicts that in equilibbrium there are too few firms in the industry relative to a max welfare standard.
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You wrote "many". You didn't specify whether many consisted of other academic economists or people who bitch about firm concentration on news shows. I assumed the latter, which does not think in game theoretic models. The closest you will get to one is average price.
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