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You may not have given exactly this argument.
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That's what you were supposed to have sort of discovered in
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doing the problem set and now we've confirmed what you already
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pretty much knew.
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So are there any questions about that?
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It's just the simple generalization of our football
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ticket example where the football tickets end up in the
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hands of the people who want them the most,
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and A happens to like a lot of tickets,
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not just one, and so A's going to keep buying
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tickets until he's bought 77 of them.
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And by then the next football ticket is worth less than 23 to him.