Huang, Teng-Ching; Tu, Yu-Chen; Chou, Heng-Chih - In: Finance Research Letters 12 (2015) C, pp. 77-91
This study investigates the long-memory property and the fractionally cointegration between absolute changes in observed stock prices and implied stock prices from option pricing model. We find a stylized fact that absolute price movements in stock and option markets are characterized by long...