**Five Beautiful Results in
Micro Theory, With Proofs**

Dan
Quint, Spring 2014

Syllabus

`Lecture 1 the first welfare theorem`

`Lecture 2 Arrows impossibility theorem`

`Lecture 3 common knowledge and agreeing to disagree`

`Lecture 4 Bayesian Nash equilibrium and no-trade`

`Lecture 5 preliminaries for optimal auctions envelopes, mechanisms, and revelations `

`Lecture 6 optimal auctions solved (and why finding another bidder is better anyway) `

`Lecture 7 impossibility of efficiency trade with bilateral private information `

`All lectures as one file `