Using EGARCH-M,TGARCH-M and PGARCH-M models with asymmetrical effect, the author analyzes empirically the rate-of-return volatility of Shangzheng index.

The uniform monetary policy generated asymmetrical effects throughout the country and some areas even suffered from completely adverse effects.

The out-sample contrasts show that forecasting the copper volatility evaluating the asymmetric effects can reduce the forecasting error and improve the forecast effects.

This paper studied the asymmetric effects of basis on the volatility of futures.

This paper investigates whether there are asymmetric effects of monetary policy in China\'s economy.

The paper,based on the relationship between basis and volatility of futures returns and the daily closing price data of wheat futures from 2003 to 2007 in Zhengzhou Futures Exchange,conducted an empirical study and finds that there exists a significant asymmetric effect of basis on futures volatility and the effect of positive basis is more significant than that of negative.

Modeling soil as an axisymmetric continuum and taking its axisymmetric wave effect into account,longitudinal vibration of pile with variable sections undergoing arbitrary load is theoretically investigated.