EPPE 6034 ECONOMETRIC METHODS SEMESTER 1 SESSION 2022/2023 ASSIGNMENT 2
Hello, dear friend, you can consult us at any time if you have any questions, add WeChat: daixieit
EPPE 6034
ECONOMETRIC METHODS
SEMESTER 1 SESSION 2022/2023
ASSIGNMENT 2
1. Use the data in Eviews workfile lond_small.wf1 (500 observations) and estimate budget share equations of the form
|
wi = F1 + F2 ln T0TEXPi + F3AGEi + F4 NKi + ui |
where |
|
wfood = |
budget share for food expenditure |
wfuel = |
budget share for fuel expenditure |
walc = |
budget share for alcohol expenditure |
wtrans = |
budget share for transport expenditure |
wother = |
budget share for other good expenditure |
totexp = |
total household expenditure |
age = |
age of household head |
nk = |
number of children |
Estimate the regression model for all budget shares in the data set (you will need to estimate five regression model). Create a table that combines all the estimation results. Report and discuss your results. In your discussion, comments on how total expenditure, age and number of children influence the various budget proportions. Also comments on the significance of your coefficient estimates.
A luxury good has an income elasticity of its budget share1 greater than zero, a necessary good has an income elasticity of the budget share less than zero, and an inferior good has an income elasticity of the budget share less than - 1.
From the estimation, commodities (goods) are regarded as luxuries if F2 > 0. For each commodity group, test H0 : F2 = 0 against H1 : F2 > 0 and comment on the outcomes.
2. Consider the following model for 36 rice farmers:
ln(PR0D)i = F1 + F2 ln(AREA)i + F3 ln(LAB0R)i+ F4 ln(FERT)i + ui
where
PROD = production of rice (tonnes)
AREA = area of land planted (hectares)
LABOR = labor (days hired)
FERT = fertilizer (kilograms)
EVIEWS Output from estimating this equation is partially given below:
Dependent Variable: LNPROD
Method: Least Squares
Sample 0 36
Variable |
Coefficient |
Std. Error t-Statistic |
C |
-1.546786 |
0.255654 -6.050321 |
LNAREA |
0.361736 |
0.063968 5.654966 |
LNLABOR |
0.432848 |
0.066883 6.471762 |
LNFERT |
0.209502 |
0.038265 5.474979 |
R-squared |
0.847871 |
Mean dependent var 1.541307 |
Adjusted R-squared |
0.846559 |
S.D. dependent var 0.871600 |
S.E. of regression |
0.341419 |
Akaike info criterion 0.699888 |
Sum squared resid |
40.56536 |
Schwarz criterion 0.743792 |
Log likelihood |
-119.1802 |
Hannan-Quinn criter. 0.717360 |
a) Interpret the coefficient of ln (AREA) and establish a 90 percent confidence interval for F2 .
b) Interpret the value of R2
c) Test the overall significance.
d) Using a 5% level of significance, test the hypothesis that the elasticity of production with respect to labor is equal to 0.3 against the alternative that it is greater than 0.3.
e) Given cov(F̂2, F̂3 ) = −0.003117 and using a 1% level of significance, test the hypothesis that the elasticity of production with respect to land is equal to the elasticity of production with respect to labor.
3. Consider the following results of production function for 1971-2009. Figures in parentheses are standard errors:
lYt = − 3.938 + 1.451 ln Kt + 0.384 lnLt
(0.237) (0.083) (0.048)
R2 = 0.9946 RSS = 0.0434
Where
Y = gross domestic product (constant RM)
K = capital stock (constant RM)
L = number ofpersons working
Suppose the sample is divided into two periods 1971- 1990 and 1991-2009. The results are given below:
For 1971- 1990 lYt = −4.058 + 1.617 ln Kt + 0.220 lnLt
(0.357) (0.209) (0.230)
R2 = 0.9759 RSS = 0.03555
For 1991-2009
lYt = − 2.498 + 1.009 ln Kt + 0.579 lnLt
(0.531) (0. 144) (0.055)
R2 = 0.9958 RSS = 0.00336
Using Chow test, decide whether there is a structural change in the two periods.
2023-01-09