Print out the regression and answer each of the following questions for the
regression run.
- Evaluate this result with respect to its economic meaning,
overall fit, and the signs and significance of the individual
coefficients.
- What econometric problems does this regression have?
Note that DW > 2 indicates negative serial correlation, which
is usually a sign of a serious specification error. In addition,
the theory behind choosing PROPK instead of an income variable
needs to be reviewed carefully. Does supply create its own
demand without price changes?
- Which of the following statements comes closest to your
recommendation for further action to be taken in the estimation
of this equation?
- No specification changes are advisable (go
to the next section).
- No variable changes are advisable, but I am
concerned about heteroskedasticity or serial
correlation (go to the next section).
- I would like to add YDUSP to the equation
(go to question set 7).
- I would like to add seasonal dummies to the
equation (go to
question set 18).
- I would like to replace PROPK with LYDUSP
(go to question set 13).