This paper derives a new method for comparing the weak-form efficiency of markets. The author derives the formula of the Sharpe ratio from the ARMA-GARCH model and finds that the Sharpe ratio just depends on the coefficients of the AR and MA terms and is not affected by the GARCH process. For...

The travel and tourism industry has been growing in importance for several developing countries. It has not only generated considerable foreign exchange revenues but has also contributed to the overall output and socio-economic development of these countries. Within the Asia and Pacific region,...