@article{econhot_econhot-cited-cac6440eafba2699, title = {Inference with Difference-in-Differences and Other Panel Data}, author = {Stephen G. Donald and Kevin Lang}, journal = {The Review of Economics and Statistics}, year = {2007}, volume = {89}, number = {2}, pages = {221-233}, doi = {10.1162/rest.89.2.221}, url = {https://doi.org/10.1162/rest.89.2.221} }