Refer to Eqs. (13.3.4) and (13.3.5). As you can see, Î±Ì 2 , although biased, has a

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Refer to Eqs. (13.3.4) and (13.3.5). As you can see, α̂2, although biased, has a smaller variance than β̂2, which is unbiased. How would you decide on the trade-off between bias and smaller variance?

MSE(â2) = = (0/E3) + B}b3: = sampling variance + square of bias MSE(§,) = o/E x}(1 – r3)

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Basic Econometrics

ISBN: 978-0073375779

5th edition

Authors: Damodar N. Gujrati, Dawn C. Porter

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