@article{Angrist2010,
author = {Angrist, J.D. and Pischke, J.S.},
title= {The credibility revolution in empirical economics: How better research design is taking the con out of econometrics},
year = {2010},
doi = {10.1257/jep.24.2.3},
volume = {24},
number = {2},
pages = {3--30},
}