文档介绍：Basic Econometrics -From
Prof. Long xiaoyu
Dept of Economics & Management
XIPT
029-85383291(o)
******@xiyou.
11/10/2017
1
Outline of Basic Econometrics
Introduction
Single-variable Regression Models
Two-variable Regression: Interval Estimation and Hypothesis Testing
Multiple Regression
11/10/2017
2
1 Introduction
WHAT IS ECONOMETRICS?
Econometrics means “economic measurement.”,but much broader than measurement, as can be seen from the following quotations:
--Econometrics may be defined as the quantitative analysis of actual economic phenomena based on the concurrent development of theory and observation, related by appropriate methods of inference.
--Econometrics may be defined as the social science in which the tools of economic theory, mathematics, and statistical inference are applied to the analysis of economic phenomena.
--Econometrics is concerned with the empirical determination of economic laws.
11/10/2017
3
1 Introduction
WHY A SEPARATE DISCIPLINE?
Econometrics is an integration of economic theory, mathematical economics, economic statistics, and mathematical statistics.
The subject deserves to be studied in its own right for the following reasons.
Reason 1
Different from Pure Economic theory
--Economic theory makes statements or hypotheses that are mostly qualitative in nature.
--Econometrician: provides numerical estimates, gives empirical content to most economic theory.
11/10/2017
4
1 Introduction
WHY A SEPARATE DISCIPLINE?
Reason 2
Different from Mathematical economics
--Mathematical economics: Main concern is to express economic theory in mathematical form (equations) without regard to measurability or empirical verification of the theory.
--Econometrics: Mainly interested in the empirical verification of economic theory. And this conversion of mathematical into econometric equations requires a great deal of ingenuity and practical skill.
11/10/2017
5
1 Introduction
WHY A SEPARATE DISCIPLINE?