For the model y1 = 1 + x + 1, y2 = 2 + 2, y3 =
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For the model y1 = α1 + βx + ε1, y2 = α2 + ε2, y3 = α3 + ε3, assume that yi2 + yi3 = 1 at every observation. Prove that the sample covariance matrix of the least squares residuals from the three equations will be singular, thereby precluding computation of the FGLS estimator. How could you proceed in this case?
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Once again nothing is lost by assuming that x0 Now the OLS estimators a...View the full answer
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