Economics exit exam 2017

@Economics_2017

Гео и язык канала: Эфиопия, Английский

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Economics exit exam 2017

25 Apr, 09:47

For a hypothetical economy, let us name it Utopian economy, characterized by being a closed and self sufficient, if the marginal propensity to save (MPS) is 0.34, then the tax multiplier of the economy approximately?

Опрос

A. 1.52
B. -1.52
C. 1.95
D. -1.95

11 голосов

224 0 2 3

Economics exit exam 2017

25 Apr, 09:43

173.Suppose a firm produces an output Q using labor L and capital K with production functionQ =10K^0.5 L^0.5. If the output is restricted to 200 units, price of labor is 10 birr per unit, the price of labor is 10 birr per unit and Price of capital is 40Birr per unit, and then determines the amount of L and K that should be employed at minimum cost. What is the minimum cost?

A. 800 B. 400 C. 600 D. 450

Ans. A

190 0 0 5

Economics exit exam 2017

25 Apr, 09:41

172.Given the following national income mode; Y = C + I + G, C = 50 + 0.6 (Y-T), T = 30 + 0.3Y, I= 20 and G= 15. Equilibrium level of national income is

Опрос

A. 111.5
B. 67
C. 80.51
D. 64.65

7 голосов

192 0 1 4

Economics exit exam 2017

25 Apr, 09:34

171.Which statement is true about probability estimation methods

A. Probit regression has a flatter distribution than logistic regression.

B. Linear probability model has constant marginal effects and hetroscedastic variance of error term

C. Both probit and logit regression models follow the same standard normal distributions

D. All models (Linear probability model, probit and logit model) has fixed marginal effects for different independent variable values.

Answer:B

158 0 0 2

Economics exit exam 2017

25 Apr, 09:33

170.One causes the OLS estimates to become biased.

Опрос

A. Existence of hetroscedastcity problems
B. Correlation between error term and explanatory variables
C. Autocorrelation problems
D. Near to perfect Multicollinearity problems

2 голосов

176 0 1 3

Economics exit exam 2017

25 Apr, 09:32

169.If there is a perfect positive autocorrelation exists in our model, the Durbin-Watson test statistics will close to

Опрос

A. Zero
B. One
C. Two
D. Four

3 голосов

173 0 1 2

Economics exit exam 2017

25 Apr, 09:31

168.Which one is true about the consequences of near perfect multicollinearity

Опрос

A. OLS estimates no longer retain BLUE property
B. Variances of parameter estimates becomes overestimated
C. The coefficient of determination (R^2) becomes too small
D. Parameter estimates becomes sensitive to small changes in the data

3 голосов

177 0 1 2

Economics exit exam 2017

25 Apr, 09:29

167.Which one of the following reveals the advantage of 2SLS over ILS estimation techniques of a simultaneous equation model?

Опрос

A. It provides multiple estimates of parameters for over identified equations.
B. It cannot be applied in the case of exactly identified equations.
C. It results identical estimates like ILS in case of an over identified equations.
D. It offers an economical method for solving models involving a large number of equations.

2 голосов

184 0 1 2

Economics exit exam 2017

25 Apr, 09:28

Опрос

150 0 0 1 2

Economics exit exam 2017

25 Apr, 09:26

Imagine you run an OLS regression of y on x and a constant and get an estimate of the coefficient of x equal b. Now, you switch the two variables and run a new regression of x on y and a constant & get another coefficient b. Under what conditions b=b

Опрос

A. When the mean of x and mean of Y are equal
B. When the sum of x square and the sum of Y square are equal
C. When x and y has inverse relationships.
D. When product of x and y greater than the sum of x square

1 голосов

151 0 0 2

Economics exit exam 2017

25 Apr, 09:25

164. What would happen (other things being equal) to a confidence interval if you calculated a 95% confidence interval rather than a 99% confidence interval?

Опрос

A. It will become wider
B. It will not change
C. It will be narrower
D. The sample size will increase

3 голосов

154 0 0 7

Economics exit exam 2017

25 Apr, 09:23

163. If the student t-calculated value of a parameter is 2.5; and the student t distribution table value at 1% and 5% significance level is 2.7 and 2.3, respectively. Then which is true about the parameter?

Опрос

We should reject the Ho that the parameter is statistically significant at 5% significance level
We should reject the Ho that the parameter is statistically significant at 1% significance level
We should not reject the that the parameter is statistically insignificant at 5% significance level
The parameter is statistically significant in both 1% and 5% significance level

2 голосов

165 0 0 3

Economics exit exam 2017

23 Apr, 10:55

162.Which statement is incorrect about the classical linear regression assumption.

Опрос

A. Mean of the error term is zero.
B. Variance of the error term is constant.
C. The sum of error square is assumed to be zero.
D. No multicollinearity between explanatory variables.

67 голосов

324 0 3 9

Economics exit exam 2017

23 Apr, 10:54

161. Estimation of the model using Ordinary Least square (OLS) is

Опрос

A. Calculating the value of the parameters for which residual sum of square is maximized
B. Calculating the value of the parameters for which likelihood function is minimized
C. Calculating the value of the parameters for which residual sum of square is minimized
D. Calculating the value of the parameters for which likelihood function is maximized

52 голосов

317 0 3 6

Economics exit exam 2017

23 Apr, 10:53

160.Which statement is true about correlation and regression

Опрос

A. Correlation helps to identify cause-effect relationships between economic variables.
B. Regression only shows the closeness of the two economic variables.
C. Regression helps to establish cause and effect relationships between economic variables
D.Both regression&correlation has similar concept in measuring the associationb/n economic variables

49 голосов

283 0 2 5

Economics exit exam 2017

23 Apr, 10:51

159.A data type that is collected from identical subjects for several period of times is called :

Опрос

A. Time series data
B. Longitudinal data
C. Cross -sectional data
D. Repeated cross sectional data

56 голосов

272 0 3 5

Economics exit exam 2017

23 Apr, 10:50

158. An econometric evaluation criterion that evaluates the size and sign of the parameters and validity of the assumption are __ and __,respectively;

Опрос

A. A priori criterion and statistical criterion
B. Econometric and statistical criterion
C. A priori criterion and econometric criterion
D. Statistical and econometric criterion

49 голосов

251 0 3 2

Economics exit exam 2017

23 Apr, 10:48

157.Which is incorrect about the goal of econometrics?

Опрос

A. It is important for testing economic theories
B. It provides relevant information for policy analysis
C. It is important for forecasting/predicting future values of the outcome variable
D. It provide insight only about the existing economic environment of an economy

53 голосов

241 0 2 2

Economics exit exam 2017

23 Apr, 10:47

156.Which of the following is not a reason for incorporating disturbance/error term in the econometric model

Опрос

A. Some of the factors may not even known by a person
B. To consider the aggregation or measurement errors
C. Randomness in human behavior
D. To represent the explicitly specified independent variables in the model

49 голосов

234 0 3 2

Economics exit exam 2017

23 Apr, 10:46

155.Which of the following questions cannot be answered by statistics

Опрос

A. What is the average salary of Dashen Bank employees?
B. How does the wage of average worker change if income tax is reduced?
C. At what age women have first child?
D. To measure the correlation between inflation and unemployment

49 голосов

244 0 2 4

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