The Impact of Crude Oil Hedging on Business Performance of Petroleum Enterprises——A Comparative Analysis of Stock Market Data in China and in the U.S.
CHENG An, FANG Yating, LI Guojing
西南石油大学学报(社会科学版) . 0, (): 1 -6 .  DOI: 10.11885/j.issn.1674-5094.2019.03.11.02