Regression through the origin. Consider the following regression through the origin: Y i = 2 X

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Regression through the origin. Consider the following regression through the origin:

Yi = β̂2X2i + β̂3X3i + ûi

a. How would you go about estimating the unknowns?

b. Will Σûi be zero for this model? Why or why not?

c. Will Σûi X2i = Σûi X3i = 0 for this model?

d. When would you use such a model?

e. Can you generalize your results to the k-variable model?


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Basic Econometrics

ISBN: 978-0073375779

5th edition

Authors: Damodar N. Gujrati, Dawn C. Porter

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