Question: In this exercise, you are to compare OLS and LAD estimates of the effects of 401(k) plan eligibility on net financial assets. The model is

In this exercise, you are to compare OLS and LAD estimates of the effects of 401(k) plan eligibility on net financial assets. The model is
nettfa = (0 + (1inc + B2inc2 + (3age + (4age2 + (5male + (6e401k + u.
(i) Use the data in 401 KSUBS.RAW to estimate the equation by OLS and report the results in the usual form. Interpret the coefficient on e401k.
(ii) Use the OLS residuals to test for heteroskedasticity using the Breusch-Pagan test. Is u independent of the explanatory variables?
(iii) Estimate the equation by LAD and report the results in the same form as for OLS. Interpret the LAD estimate of (6.
(iv) Reconcile your findings from parts (i) and (iii).

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ii iii The equation estimated by OLS is nettfa 21198 270 inc 0102 inc 9992 075 0006 The equation est... View full answer

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