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Book Discussion About DB Cooper

**Robert99**:

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Register or LoginFinally?

Don't you read any posts?

I have always said I haven't read his book, other than the preview pages that were available on Amazon.

Let's explore this non-reading by Snowmman some more.

When did evidence first surface of this non-reading? How has this non-reading affected the price of olives in Shenzen?

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The evidence of your non-reading was evident in your first post on the book.

**snowmman**:

I just finished not reading Edwards' book.

I'm struggling to understand why the notion of "belief revision" is an important concept. In particular, why does the belief over information sets with probability zero matter?

When comparing to the notion of "weak sequential equilibriums" (i.e. an assessment that satisfies sequential rationality and Bayesian updating at reached information sets), since both equilibria satisfy sequential rationality, does this mean that for any profile σW of a weak sequential equilibrium, there exists a profile σP belonging to a perfect Bayesian equilibrium such that σW and σP agree on information sets with positive probability?

Finally, suppose that all information sets have non-zero probability. In this case, is every weak sequential equilibrium also a perfect Bayesian equilibrium?

**georger**:

You are not allowed to view links.
Register or LoginI just finished not reading Edwards' book.

I'm struggling to understand why the notion of "belief revision" is an important concept. In particular, why does the belief over information sets with probability zero matter?

When comparing to the notion of "weak sequential equilibriums" (i.e. an assessment that satisfies sequential rationality and Bayesian updating at reached information sets), since both equilibria satisfy sequential rationality, does this mean that for any profile σW of a weak sequential equilibrium, there exists a profile σP belonging to a perfect Bayesian equilibrium such that σW and σP agree on information sets with positive probability?

Finally, suppose that all information sets have non-zero probability. In this case, is every weak sequential equilibrium also a perfect Bayesian equilibrium?

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funny!

**dudeman17**:

It turns out that copies of Ha Ha Ha are readily available. If anyone is interested in getting one, PM me either here or at DZ and I will give you the contact. I am not selling these myself. I have no personal stake in their sale. I can just refer you to somebody who is.

**nickyb233**:

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