Do expected future debt increases raise long-term bond yields?
Core argument: Modeling investors with limited foresight, the authors find that heterogeneity in forecast horizons creates a relationship in which changes in government debt issuance in the far future are discounted more heavily than near-future changes when pricing the term premium.
We modify the assumption regarding investors’ expectations formation to allow for limitations on the ability of investors to foresee and forecast future events. When investors differ in the horizon over which they use economic relationships to make forecasts, this heterogeneity gives rise to a relationship between the term premium and changes in debt issuance in which changes in debt issuance in the far future are discounted more heavily than those occurring in the near future. Accordingly, the limited foresight of financial market participants introduces an additional [discounting] parameter into the relationship between government debt and the term premium relative to the case of perfect foresight. The parameter 𝛾 corresponds to how far in the future the average financial market participant uses information on government debt to form beliefs about the term premium. As 𝛾 approaches 1, the model implies the same term premium effects as under perfect foresight. due to cognitive limits



