Study Guide for EC 508
1.
Structure of Economic Data
2. The Simple Linear Regression Model (SLR)
3. Deriving OLS Estimates
4. Properties of OLS Estimators
5. Meanings of the slope variable in different functional forms between y and x
6. True meaning of l
Economics 508: Econometrics
Spring 2015
MW 10:30 12:00; F 2:00 3:00
CAS 216
Michael Rife
Office Hours: 1 3 MW
360-281-9432
gary.rife@bu.edu
Course Description: The course involves the economic applications of the statistical
techniques of simple and multi
*
* We will use one of the preloaded datasets
* to illustrate some Stata commands
* created by Danielle Trachtenberg on 1.30.15
*
clear
set more off
sysuse lifeexp.dta
*note that Stata data files are saved as .dta
* use 'insheet' for .txt, .csv
* or 'imp
Proof of MSR declining when |t|>1
Let the first estimated regression model be
. (1)
Let the second estimated regression model be
. (2)
Then the SSR1 for equation 1 is and the SSR2 for equation 2 is .
To test whether or not the variable z belongs in the eq
Proof that the Variance Estimator of the Error Terms is Unbiased in Simple Linear
Regression
Assume the model is yi = 0 + 1xi + ui.
(1)
Taking the sample average across the equation gives us
(2)
Subtracting (2) from (1) gives us
(3)
But, and the sample me