We find that the degree and dynamics of sovereign bond market integration across 21 developed and 18 emerging countries is significantly heterogeneous. We show that better spanning can significantly enhance market integration through dissipating local risk premiums. Integration of the sovereign bond markets increases by about 10% on average, when a country moves from the 25th to the 75th percentile as a result of higher political stability and credit quality, lower inflation and inflation risk, and lower illiquidity. The 10% increase in integration leads to, on average, a decrease in the sovereign cost of funding of about 1% per annum.

We show in a theoretical asset pricing model incorporating heterogeneous beliefs that the expected excess return on a risky asset depends on its exposure to the risk arising from innovations in the average belief of investors about the expected return of a representative asset. Using the actual EPS data and the analyst EPS forecast data provided by I/B/E/S, we construct a market-wide average belief measure, which we call “the earnings belief measure.” We find that the average return on stocks with high sensitivity to earnings belief shocks is 7.14% per year higher than that on stocks with low sensitivity. This positive relationship holds after accounting for traditional risk factors, is prominent among large-cap stocks, and is invariant across sentiment levels.