We investigate the effects of the stochastic interest rates and the volatility f the underlying asset price on the contingent claim prices including futures and options prices. The futures price can be decomposed into the forward price and the additional terms and the options price can be...

We illustrate how to use the X-12-ARIMA program developed by the U. S. Census Bureau when you have to make seasonal adjustment data at the statistical division of the central government. As an illustration we use the Hojinkigyo-Toukei, which is one of the major statistics including sales and...

In the recent X-12-ARIMA program developed by the United States Census Bureau for seasonal adjustments,the RegARIMA modeling has been extensively utilized.We shall discuss some problems in the RegARIMA modeling when the time series are realizations ofnon-stationary integrated stochastic...

We investigate the effects of the stochastic interest rates and the volatility of the underlying asset price on the contingent claim prices including futures and options prices. The futures price can be decomposed into the forward price and the additional terms and the options price can be...