ECS4863 Assignment 1 (100% COMPLETE ANSWERS) 2025 - DUE 16 May 2025

Advanced Econometrics - ECS4863 Assignment 1 2025 - DUE 16 May 2025 ;100 % TRUSTED workings, Expert Solved, Explanations and Solutions. For assistance call or W.h.a.t.s.a.p.p us on ...(.+.2.5.4.7.7.9.5.4.0.1.3.2)........... ASSIGNMENT 01 DUE DATE: Friday, 16 May 2025, 11:00 PM Dear Student, INSTRUCTIONS Please do not use this document as a template on which to fill in your answers. Submit your answers on a separate document and make sure to check your numbering. Also remember to include your name and student number on the front page of your submission, and preferably on each page of your answer sheet. All the assignments for ECS4863 are strictly individual assignments! This means you are NOT allowed to work in groups or make use of any human assistance. Indications of plagiarism and/or cheating will be dealt with according to the University’s Disciplinary Processes. All the best with the assignment! This assignment covers: Lesson 1, Time series analysis and introductory lessons. Question 1: (15 marks) 1.1 Explain the concept of omitted variable bias and distinguish between positive and negative bias 1.2 Explain in your own words how you test serial correlation with strictly exogenous variables 1.3 Explain, in your own words, the concept of heteroscedasticity and implications for inferences in econometrics 1.4 Explain in your own words what is meant by the following: a) Covariance stationary process b) Sequential exogeneity Question 2: (5 marks) In this question you need to gather and analyze time series data for a country (other than South Africa!)