I was the TA for Graduate Microeconometrics (2nd year PhD course) from Fall 2019-2022 at Boston University. The slides I made for some of my weekly discussions can be found below. They all borrow from various sources, and I've tried my best to list all the references.
Weighting, Oster bias correction: Summarizes Solon-Haider-Wooldridge (2015) and Oster (2019)
Clustering standard errors: MacKinnon and Webb (2019), Abadie-Athey-Imbens-Wooldridge (2017)
Nonparametric identification (with applications in auctions)
Auction - Applications I : Ben Rosa (RAND)
Auction - Applications 2: Athey, Levin and Seira (2011)