Refer to Exercise 7.19, which is concerned with the demand for chicken in the United States. There

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Refer to Exercise 7.19, which is concerned with the demand for chicken in the United States. There you were given five models.

a. What is the difference between model 1 and model 2? If model 2 is correct and you estimate model 1, what kind of error is committed? Which test would you apply—equation specification error or model selection error? Show the necessary calculations.

b. Between models 1 and 5, which would you choose? Which test(s) do you use and why?

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Basic Econometrics

ISBN: 978-0073375779

5th edition

Authors: Damodar N. Gujrati, Dawn C. Porter

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