TY  - JOUR
A1  - Conley, T.G.
A1  - Taber, C.R.
T1  - Inference with ‘difference in differences’ with a small number of policy changes
Y1  - 2011
DO  - 10.1162/REST_a_00049
JF  - Review of Economics and Statistics
VL  - 93
IS  - 1

ER  -