Results in this paper support evidence of time-varying beta coefficients for five sectors in Kuwait Stock Market. The paper indicates banks, food, and service sectors exhibit relatively wider range of variation compared to industry and real estate sectors. Results of time-varying betas...

This paper investigates sensitivity of U.S. natural gas price to crude oil price changes, using time-varying coefficient models. Identification of the range of variation of the sensitivity of natural gas price to oil price change allows more accurate assessment of upper and minimum risk levels...

The interaction of volatility between the financial markets and gold market is analyzed. The volatility of the price of gold in euros, the price of gold in dollars, the U.S. industrial production índex, the S&p500 index, the VIX índex and the PSI20 index for a time horizon between January 1993...