Abstract
In this chapter, we relax the assumptions made in Chapter 3 one by one and study the effect of that on the OLS estimator. In case the OLS estimator is no longer a viable estimator, we derive an alternative estimator and propose some tests that will allow us to check whether this assumption is violated.
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References
For additional readings consult the econometrics books cited in the Preface. Recent chapters on het-eroskedasticity and autocorrelation include Griffiths (2001) and King (2001):
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Baltagi, B.H. (2002). Violations of the Classical Assumptions. In: Econometrics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04693-7_5
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DOI: https://doi.org/10.1007/978-3-662-04693-7_5
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