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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Regime changes and the term structure of interest rates. (See Mankiw and Miron, 1986.) Consider an economy where money is neutral. Specifically, assume that πt = mt and that r is constant at zero. Suppose that the money supply is given by
 where ε is a white-noise disturbance.
Â
) Assume that the rational-expectations theory of the term structure of interest rates holds (see [11.6]). Specifically, assume that the two-period interest rate is given by
 denotes the nominal interest rate from t to t +1; thus, by the Fisher identity, it equals
Â
Â
(i) What is
 as a function of mt and k?
Â
(iii) What is the relation betweenÂ
 as a function of ![]()
Â
(iv) How would a change in k affect the relation between
 ? Explain intuitively.
Â
(b) Suppose that the two-period rate includes a time-varying term premium:
Â
 is a white-noise disturbance that is independent of ε. Consider the OLS regressionÂ
 et +1.
Â
(i) Under the rational-expectations theory of the term structure (with θt = 0 for all t), what value would one expect for b? (Hint: For a univariate OLS regression, the coefficient on the right-hand-side variable equals the covariance between the right-hand-side and left hand-side variables divided by the variance of the right-hand-side variable.) Â
Â
(ii) Now suppose that θ has variance
 What value would one expect for b?
Â
(iii) How do changes in k affect your answer to part (ii)? What happens to bas k approaches 1?
Â
Â
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