Advanced Econometrics

ECS4863 Assignment 1 Memo | Due 16 May 2025. All questions fully answered. Question 1: (15 marks) 1.1 Explain the concept of omitted variable bias and distinguish between positive and negative bias ( 4) 1.2 Explain in your own words how you test serial correlation with strictly exogenous variables (3) 1.3 Explain, in your own words, the concept of heteroscedasticity and implications for inferences in econometrics (4) 1.4 Explain in your own words what is meant by the following: (4) a) Co...

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