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KDI 경제교육·정보센터

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최신자료
Equivalent Logit Choice Probabilities from Optimization and Randomization
CEPR
2026.01.23
We uncover an equivalence between two opposite behavioral microfoundations for the standard multinomial logit choice model: 1) agents optimize their choice accordingly to the random utility model under Gumbel idiosyncratic shocks; 2) agents randomize over options subject to a minimum utility requirement. Both generate identical multinomial logit choice probabilities, yet have different welfare implications: welfare is strictly lower under randomization, since only optimizing agents select into options with favorable realizations of idiosyncratic shocks.