This study investigates the momentum profits and provides a systematic risk as well as time-varying unsystematic risk explanation, adopting the monthly returns in the Taiwan stock market during 2003–2008 periods. Through the regression models including and combining the CAPM, Fama–French...

The dynamic portfolio frontier theory in a mean-variance framework previously developed by scholars suffers some limitations. Specifically, the theory assumes the use of the martingale approach, the assumption of a complete market and particular probability distribution of asset returns....

This study investigates the momentum and contrarian profits corresponding to the coincident economic indicator on the Taiwan stock market. The empirical findings are as follows. First, neither momentum nor contrarian profits are statistically significant on average. Second, winners and losers...

Previous studies have demonstrated that investor sentiment affects trading behavior and stock returns, and is correlated with seasons and weather. In addition, a great deal of evidence supports the main systematic factors of the Fama-French (FF) three-factor model. This study presents both the...

We examine the influence of investor sentiment on the risk-reward relationship in the Taiwan stock market. Regression results show that the risk-reward relationship is weakly positive (significantly negative) under low (high) levels of investor sentiment. Granger causality tests indicate...

This study analyzes individual portfolio selection in the presence of background risk. Under the expected utility framework, this study determines necessary and sufficient conditions of utility functions for two-fund monetary separation with independently additive and multiplicative background...

This study compares the out-of-sample performances among Black-Scholes (B-S), Stochastic Volatility (SV) and Generalized Autoregressive Conditional Heteroscedasticity (GARCH) models in the Taiwan option market. Using Absolute Relative Pricing Error (ARPE) as the performance criterion, the...