My office hours are held in room S684 from 11.30am to 12.30am on Tuesdays.

Solutions to problem sets:

Other things:

Material from past years:

NOTE: On 12th of May 2010 at 5pm, at the first mock correction section, I incorrectly gave a formula for the OVB of question that was slightly wrong. I wrote cov(Wtilde_i, T_i)/Var(T_i), when truly I meant cov(W_i, Ttilde_i)/Var(Ttilde_i), where Ttilde_i is the residual from a regression of T_i on X_i. Sorry for the inconvenience.