<p>What is the difference of the ex-post utility function of the utility function. For example in <a href="https://elischolar.library.yale.edu/cgi/viewcontent.cgi?article=3544&amp;context=cowles-discussion-paper-series" rel="nofollow noreferrer">Bergemann and Morris (2019)</a> the utility function is defined as an ex-post utility function. Check in page <span class="math-container">$7$</span>. Is this assumption critical? If it was not mentioned, could this change anything?</p>
<p>I can not understand what is the difference between the utility with the ex-post or the ex-ante utility function. Could anyone shed some light to the topic?</p>

CC BY-SA 4.0
2023-05-17T16:49:19.347Z
All it means is that you know the specifiv  value only after action profiles and states of nature are realized. If the word confuses you, ignore it.
Michael Greinecker
CC BY-SA 4.0
2023-05-19T13:49:21.953Z
@MichaelGreinecker thanks...it makes sense...It was just the word, that confused me, but it is so simple to understand what it is after all....
Oliver Queen
<mathematical-economics><game-theory><utility><bayesian-game><information>
What is the difference between the utility with the ex-post or the ex-ante utility function?
Oliver Queen
# What is the difference between the utility with the ex-post or the ex-ante utility function?

(Asked by: username_0 on 2023-05-17)

What is the difference of the ex-post utility function of the utility function. For example in [Bergemann and Morris (2019)](https://elischolar.library.yale.edu/cgi/viewcontent.cgi?article=3544&context=cowles-discussion-paper-series) the utility function is defined as an ex-post utility function. Check in page $7$. Is this assumption critical? If it was not mentioned, could this change anything?

I can not understand what is the difference between the utility with the ex-post or the ex-ante utility function. Could anyone shed some light to the topic?

**Tags:** mathematical-economics, game-theory, utility, bayesian-game, information

> **Comments:**
> **username_1**: All it means is that you know the specifiv  value only after action profiles and states of nature are realized. If the word confuses you, ignore it.  
> **username_0**: @MichaelGreinecker thanks...it makes sense...It was just the word, that confused me, but it is so simple to understand what it is after all....  

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## 0 answers

