@article{econhot_econhot-cited-7c92808864adf418, title = {Avoiding Invalid Instruments and Coping with Weak Instruments}, author = {Michael Peter Murray}, journal = {The Journal of Economic Perspectives}, year = {2006}, volume = {20}, number = {4}, pages = {111-132}, doi = {10.1257/jep.20.4.111}, url = {https://doi.org/10.1257/jep.20.4.111} }