All known typos corrected in Lecture 2
No new homework after lecture 7, but see the reading assignment (slide 84)
match.do is a matching routine for Stata written by Alberto Abadie and Guido Imbens (both at Harvard). Download the version written for Stata 8 (and up) below.
psmatch2 is the state-of-the-art routine for doing propensity score matching. It was written and is maintained by Edwin Leuven.