Consider the following modified Keynesian model of income determination: where C = consumption expenditure I = investment

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Consider the following modified Keynesian model of income determination:

C; = B10 + B1Y, + u, I, = B20 + B21 Y,+ B22 Y,–1+ U2: Y, = C, + I; + G, %3D


where C = consumption expenditure

I = investment expenditure

Y = income

G = government expenditure

Gt and Ytˆ’1 are assumed predetermined

a. Obtain the reduced-form equations and determine which of the preceding equations are identified (either just or over-).

b. Which method will you use to estimate the parameters of the overidentified equation and of the exactly identified equation? Justify your answer.

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Basic Econometrics

ISBN: 978-0073375779

5th edition

Authors: Damodar N. Gujrati, Dawn C. Porter

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