Courses Description
Econometrics I
- Category: 4th Semester
- Tutor(s): Professor G. Halkos
Review
Duration: 3 hours per week - 13 weeks [ECTS: 6]
Course outline
- Matrix Algebra: Revision of the basic concepts of
- The Classical Linear Regression Model: The basic assumptions. The Ordinary Least Squares method, properties of Least Squares estimators, the Gauss-Markov theorem. The coefficient of determination (R2) as a measure of goodness of fit.
- Multiple linear regression models: estimation and testing (OLS estimates, maximum likelihood estimates, BLUE estimates)
- Normality: Testing the hypothesis of normality
- Heteroskedasticity (the nature of the problem, consequences, detection and remedial measures).
- Autocorrelation (the nature of the problem, consequences of using OLS in the presence of autocorrelation, detecting autocorrelation, remedial measures when the structure of autocorrelations is known and when ρ is not known).
- Multicollinearity (the nature of the problem, consequences, detection and remedial measures)
- Specification error (the nature of the problem, consequences, detection and remedial measures)
- Extension of the Linear model: Non-linear models and regression on dummy variables
- Using Matrix Algebra in regression