期刊
ENERGY STRATEGY REVIEWS
卷 39, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.esr.2021.100761
关键词
COVID-19 pandemic; Quantitative easing; WTI crude oil; Coal future; Risk conduction effect; Market efficiency
资金
- National Natural Science Foundation of China [71874203]
The study shows that there is an interactive relationship between coal and WTI crude oil markets, and the Fed's unlimited QE policy has improved market efficiency. However, with rising prices and continuous inflation, the volatility and risk of the energy futures market will increase in the future.
The COVID-19 epidemic has severely affected the world economy and energy markets. In order to alleviate the shock, stabilize the financial market, and promote economic recovery, the Fed announced an unlimited QE policy. In order to understand the impact of the policy on the energy market under the extreme events, the study selected WTI crude oil and coal prices from January 1, 2018 to May 7, 2021 as the research objects. Taking the two years before the epidemic, the epidemic stage was further divided into four small stages according to the three peaks of the epidemic in the US. The MF-DCCA model calculations show that coal and WTI crude oil have an interactive relationship. The risks between them are not just averaged and superimposed, but transmitted and interacted.The MF-DFA model calculation results show that due to the disorder of energy supply and demand under the epidemic, market efficiency in the first quarter of 2020 has dropped rapidly. However, market effi-ciency decoupled from the development of the epidemic in the second half of 2020. Especially after the announcement of the QE policy, market efficiency has improved significantly. However, under the excessive monetary policy, market efficiency declined in the first half of 2021. This shows that the policy has a certain effect on alleviating the impact of the epidemic on the energy market. But this improvement is not sustainable from the long term. As prices rise, inflation continues. In the future, the volatility and risk of the energy futures market will increase.
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