Suppose you use a time series sample covering 34 years and estimate the following multiple regression model
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Question:
Suppose you use a time series sample covering 34 years and estimate the following multiple regression model of investment demand:
I t = ß̂ 0 + ß̂ 1 Q 1 +ß̂ 2 R t +ß̂ 3 TR t +e t
Where (I)is the investment in real capital, (Q) is output, (R) is the long-term interest rate, (Tr) is the corporate tax rate. and (e) is the residual. You obtain the results reported on the attached sheet.
Suppose the model were recast in such a manner that we took the natural log of the explanatory variables, and applied OLS to the same sample. We obtain the following results:
In(l t ) = -12.1 + 1 .1 I(Q t )- 0.1In(R t ) - 0.07In(Tr t )+ε t
R 2 = 0.99, F=1350
Required:
- what is the interpretation of the coefficient on In(Qt)')
- Does this specification allow you to rank the influence of each independent variable on the dependent variable?
Related Book For
Elementary Statistics Picturing the World
ISBN: 978-0321911216
6th edition
Authors: Ron Larson, Betsy Farber
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