ECO453 Tma Solutions
1. Consider the nonlinear regression problem, Y = aebxU, with parameters a and b and with multiplicative error term U. If we take the logarithm of both sides, this becomes ____.
ln(y) = log(a) + bx + u,
log(y) = ln(a) + bx + u,
ln(y) = ln(a) + lnbx + u,
—>> ln(y) = ln(a) + bx + u,
2. What does a Durbin-Watson stat value of 2.024903 indicates?
—>> Absence of autocorrelation
Absence of heterogeneity
Presence of autocorrelation
Presence of heterogeneity
3. Kurtosis shows the ____ of the graph.
weight
—>> height
breadth
length
4. The mean is normally surposed to be____
—>> zero
one
two
three
5. It allows Economists to sift through mountains of data to extract simple relationships
Mathematical Economic
—>> Econometrics
Statistics
Macroeconomics
6. Is NOT a source of deviation in parameter model estimation
Omission of variable(s)
Random behaviour of human beings
Imperfect specification of the mathematical form of the model
—>> Perfect specification of the mathematical form of the model
7. Given a linear regression model, GDP= β0 + β1 Inflation+ U: All of the following stands for U EXCEPT
—>> An intercept
the error term
the random disturbance term
the stochastic term
8. It becomes ____ when the dependent variable has only two response category such as “Yes†or “Noâ€.
—>> binary (dichotomous)
Ordered category
Multinomial category
Polychotomous category
9. In econometric research there are four main stages; which of the following is NOT among them?
Model Formulation
Model Estimation
—>> Model simulation aggregation
Evaluation of Model Estimates
10. Is an examples of nonlinear function.
exponential functions
logarithmic functions
—>> algebraic functions
Lorenz curves
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