This paper employs the Bai and Perron (1998, 2003) structural break methodology to investigate whether the CAPM betas for banking sector stocks are time invariant. I find evidence for three large structural shifts in my monthly (1941.02–2008.01) sample. The third break corresponds with a...

This paper develops and empirically supports, using 3 and 6 month interest rates, a theory that political risk can explain the shifting term premia found in U.S. data. We find that incorporating these political regime shifts yield results that support the expectations hypothesis.