In this paper, we examine the hypothesis that world oil market is “one great pool” by investigating the integration between China's and four major crude oil markets. Using a nonlinear correlation measure, we find that the price co-movement between China's and international oil prices is...

In existing researches, the investigations of oil price volatility are always performed based on daily data and squared daily return is always taken as the proxy of actual volatility. However, it is widely accepted that the popular realized volatility (RV) based on high frequency data is a more...