capital is capital tao research is research economists dont deal with heterogeneity
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Replying to @reaIDickMNixon
heteroscedasticity is talked about because its a problem someone actually solved in the 70s or 80s, whenever White published on this sadly that was the least of the problems in the field but its one they can talk about solving the rest just get brushed under the rug
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robust estimates miss me with that bootstrap everything and dont look back!!
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in what sense this feels like a trap
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well thats why we use different subsets for fitting validation and testing
overfitting but with more steps 
9:54 AM - 7 May 2020
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