A casual inspection of a graph of volatility indexes over time indicates that volatility has undergone infrequent, but significant, shifts in its average level. The purpose of this article is to test for multiple structural breaks in the mean level of market volatility measured by the VIX and...

A casual inspection of a graph of volatility indexes over time indicates that volatility has undergone infrequent, but significant, shifts in its average level. The purpose of this article is to test for multiple structural breaks in the mean level of market volatility measured by the VIX and...

The original put-call parity relations hold under the premise that the underlying security does not pay dividends before the expiration of the options. Similar to Hull (2003), this paper relaxes the non-dividend-paying assumption. The underlying security price in the original European-style...