What are the cross-sectional and time-series characteristics of corporate bond returns? Do corporate bond risk premia vary over time and are these time-variations predictable? And if yes, is it a sign of market inefficiency? Recent empirical studies show a strong mean reversion at the monthly...

In this article, we have tested a linear Gaussian state space model and the kalman filter in testing ARMA(2,3) models of the natural logarithmic monthly market returns of the US 1838 bond debenture closed-end fund. The aim is to estimate expectations that arises from the interaction of...