The forecaster augments her AR(4) model for IP growth to include four lagged values of R t
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Question:
The forecaster augments her AR(4) model for IP growth to include four lagged values of ΔR t , where R t , is the interest rate on 3-month U.S. Treasury bills (measured in percentage points at an annual rate).
a. The Granger-causality F-statistic on the four lags of ΔR is 4.16. Do interest rates help predict IP growth? Explain
b. The researcher also regresses AR, , on a constant, four lags of ΔR t , and four lags of IP growth. The resulting Granger-causality F-statistic on the four lags of IP growth is 1.52. Does LP growth help to predict interest rates? Explain.
Related Book For
International Finance Theory and Policy
ISBN: 978-0133423648
10th edition
Authors: Paul R. Krugman, Maurice Obstfeld, Marc J. Melitz
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