Frequentist

Maximum Likelihood Estimation (MLE)

Jerry A. Hausman (1975).  An Instrumental Variable Approach to Full Information Estimators for Linear and Certain Nonlinear Econometric Models.  Econometrica, 43(4), 727-738.    

https://doi.org/10.2307/1913081

Working paper (MIT. Dept. of Economics) ; no. 127

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Jerry A. Hausman and William E. Taylor (1983). Identification in Linear Simultaneous Equations Models with Covariance Restrictions: An Instrumental Variables Interpretation. Econometrica, 51(5), 1527-1549.

https://doi.org/10.2307/1912288

Working paper (MIT. Dept. of Economics) ; no. 280

PPT made by Google Gemini

Jerry A. Hausman, Whitney K. Newey and William E. Taylor (1987). Efficient Estimation and Identification of Simultaneous Equation Models with Covariance Restrictions. Econometrica, 55(4), 849–874. 

https://doi.org/10.2307/1911032

Working paper (MIT. Dept. of Economics) ; no. 369