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Introductory Econometrics: A Modern Approach 6th Edition by Jeffrey M Wooldridge
Edition 6ISBN: 130527010XIntroductory Econometrics: A Modern Approach 6th Edition by Jeffrey M Wooldridge
Edition 6ISBN: 130527010Xi)Apply RESET from equation to the model estimated in Computer Exercise. Is there evidence of functional form misspecification in the equation?
(ii) Compute a heteroskedasticity-robust form of RESET. Does your conclusion from part (i) change?
y = ?0+ ?1x1+… + ?kxk+?1
2 + ?2
3+error.
In Problem 4.2, we added the return on the firm’s stock, ros, to a model explaining CEO salary; ros turned out to be insignificant. Now, define a dummy variable, rosneg, which is equal to one if ros _ 0 and equal to zero if ros _ 0. Use CEOSAL1.RAW to estimate the model
Discuss the interpretation and statistical significance of
3.
Verified
Step 1 of 4
(i)
The model estimated in Computer Exercise C5 in Chapter 7 is:
In order to apply usual OLS form RESET to test for the evidence of the functional form mis-specification in the equation, it is required to follow four steps:
1) Estimate the model and compute the estimated 
2) Take the quadratic and cubic form of 
3) Add 
and
as the explanatory variables in the model such that the model becomes: 
4) Test for the joint significance of 
and
Step1:
Estimating the model and computing the estimated
The estimate of 
is obtained by fitting the equation:
The 
is represented by log (SALARY) _hat
Step2:
In order to estimate the quadratic and cubic values for
, obtain 
and
by taking the square and cube of 
respectively
They are represented as lsalary_hatsq and lsalary_hatcu respectively
Step3:
Estimate the model given by:
The result is:
Step 2 of 4
Step 3 of 4
Step 4 of 4
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