20137 - ADVANCED STATISTICS FOR ECONOMICS AND SOCIAL SCIENCES
Course taught in English
The course is designed to provide an in-depth knowledge of the main aspects of statistical inference (point estimation and hypothesis testing), both from a conceptual and a technical point of view. Optimality principles are discussed for the main procedures, based on the properties of sufficiency, completeness, and ancillarity of statistics and based on the likelihood principle. The implications of such concepts are analyzed both within the finite sample case and in the asymptotic setting. Principles and techniques discussed in the course are relevant to the development and analysis of statistical models in many areas (e.g., in the linear model and its generalizations).
- Properties and results for random variables.
- Sufficient, ancillary, and complete statistics.
- Point estimation: method of moments and method of maximum likelihood. Comparison among estimators and optimality results (Mean Squared Error, Uniform Minimum Variance Estimators, Fisher’s information, Loss function).
- Hypothesis testing: criteria and construction of optimal tests within the Neyman-Pearson framework (power of tests). Tests based on the likelihood ratio. The role of the p-value and of tests of significance.
- Asymptotic considerations: consistent and asymptotically efficient estimators. Likelihood-based asymptotic tests and confidence intervals.
- Introduction to Bayesian inference and comparison to the classical framework.
A written general exam or two partial written exams (one in the middle and one at the end of the course).
There are no different assessment method/exam program between attending and non attending students.
- N. MUKHOPADHYAY, Probability and Statistical Inference, Dekker-CRC Press, 2000.
- Additional Reference: G CASELLA and R.L. BERGER, Statistical Inference, Duxbury, 2002, 2nd edition.
- Further detailed information is provided during the course.
These topics are dealt within the preparatory course, which is held at the very beginning of September. Attendance is strongly recommended.