Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 23 Jan 2018 My Price 5.00

errors for AR

C13 Use the data in OKUN.RAW to answer this question; see also Computer Exercise C11 in Chapter 11.

(i)        Estimate the equation pcrgdpt 5 b0 1 b1cunemt 1 ut and test the errors for AR(1) serial correlation, without assuming {cunemt: t 5 1, 2, …} is strictly exogenous. What do you conclude?

(ii)      Regress the squared residuals, û2, on cunem (this is the Breusch-Pagan test for

t                            t

heteroskedasticity in the simple regression case). What do you conclude?

(iii)     Obtain the heteroskedasticity-robust standard error for the OLS estimate bˆ1. Is it substantially different from the usual OLS standard error?

Answers

Maurice Tutor
(5)
Status NEW Posted 23 Jan 2018 07:01 PM My Price 5.00

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