FAQs for Hayashi Econometrics, Princeton University Press, 2000
Proof of (1.2.19) on p. 21
Proof that \tilde{X}2'tilde{X}2 on p. 73 is invertible
Why a symmetric positive semi-definite matrix is positive definite if it is non-singular?
Proof that X=0 with probability 1 if E(X2)=0.
How to incorporate serial correlation in multiple-equation GMM, that is, how to combine Chapters 4 and 6?
Proof of (7.2.14) on p. 466
Proof of matrix inequality on page 552
How to go from the cointegrated VAR (10.2.12) on p. 636 to VMA?
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