Monthly returns are used to estimate the single-index market model (SIMM). Binary variables are used to determine if the alpha intercept and beta slope coefficients are stable through alternating bull markets and bear markets. The results suggest that some investment analysts have fallen into...

The availability of a two-year high-frequency transaction data of the Japanese Government Bond (JGB) futures provides us with an opportunity to uncovering volatility persistence in high-frequency returns and testing the mixed-distribution-hypothesis (MDH) in this market. Both time-domain and...

Following Bollerslev et al. (2000), this study characterizes the high-frequency volatility of the Japanese Government Bond (JGB) futures on the Tokyo Stock Exchange (TSE) in terms of intraday calendar effects, announcement effects and volatility persistence effects. The results indicate that,...