A static model is postulated when:
A. a change in the independent variable at time ‘t' is believed to have an effect on the dependent variable at period ‘t + 1'.
B. a change in the independent variable at time ‘t' is believed to have an effect on the dependent variable for all successive time periods.
C. a change in the independent variable at time ‘t' does not have any effect on the dependent variable.
D. a change in the independent variable at time ‘t' is believed to have an immediate effect on the dependent variable.
Answer: D
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