We examine the short-term dynamic relation between the S&P 500 (Nasdaq 100) index return and changes in implied volatility at both the daily and intraday level. Neither the leverage hypothesis nor the volatility feedback hypothesis adequately explains the results. Alternatively, we propose that...

We use daily geometric mean returns to investigate abnormal returns in mutual funds by applying four well known models, namely the CAPM, three-moment CAPM, Fama and French (1993) three-factor and Carhart (1997) four-factor models under different economic cycles and over different fund...

We use daily geometric mean returns to investigate abnormal returns in mutual funds by applying four well known models, namely the CAPM, three-moment CAPM, Fama and French (1993) three-factor and Carhart (1997) four-factor models under different economic cycles and over different fund...