This paper investigates the expectations hypothesis for the Japanese term structure of interest rates using vector error correction models with multiple structural breaks, focusing on how the breaks affect volatility, risk premium and speed of the adjustment toward the equilibrium. Using 1985-2005 data, we find strong evidence of three structural changes. After the second break point, the term structure relationship is found to be weakened with nearly zero percent short-term interest rate. This finding is consistent with the expectations hypothesis since with very low short-term interest rate the risk premium is dominant in determining long rates.
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Paper provided by Graduate School of Economics, Hitotsubashi University in its series Discussion Papers with number
2006-15.