The study investigated both the January effect and the "sell-in-May-and-go-away" anomaly in government bond returns. It … volatility, credit risk, value, and momentum premia. Our examination of government bond markets in 25 countries for years 1992 …-2016 proved that both the bond returns and factor premia had remained unaffected by the January and "sell-in-May" effects. These …

change in government bond yields underperforms the countries with the lowest change by 0.76% per month. The phenomenon is …