This study examines the systemic risk caused by major events in the international energy market(IEM)and proposes a management strategy to mitigate it. Using the tail-event driven network(TENET)method, this study const...This study examines the systemic risk caused by major events in the international energy market(IEM)and proposes a management strategy to mitigate it. Using the tail-event driven network(TENET)method, this study constructed a tail-risk spillover network(TRSN) of IEM and simulated the dynamic spillover tail-risk process through the cascading failure mechanism. The study found that renewable energy markets contributed more to systemic risk during the Paris Agreement and the COVID-19pandemic, while fossil energy markets played a larger role during the Russia-Ukraine conflict. This study identifies systemically important markets(SM) and critical tail-risk spillover paths as potential sources of systemic risk. The research confirms that cutting off the IEM risk spillover path can greatly reduce systemic risk and the influence of SM. This study offers insights into the management of systemic risk in IEM and provides policy recommendations to reduce the impact of shock events.展开更多
Electricity Market Act№2019-VIII passed in 2017 by the Verkhovna Rada of Ukraine enacts in July 2019 and causes the transition of this segment of the economy to the free market principles.The implementation of this A...Electricity Market Act№2019-VIII passed in 2017 by the Verkhovna Rada of Ukraine enacts in July 2019 and causes the transition of this segment of the economy to the free market principles.The implementation of this Act is perceived ambiguous.Many experts criticize this Act,which have numerous risks,especially pricing risks.In order to better understand the implications of the enactment of the adopted Act,a study was carried out on the methodology of the pricing mechanism in the retail segment of the electricity market based on the Demand Side Management(DSM)approach.In the study,one of the varieties of DSM models was used–a dynamic demand-supply model for describing the pricing mechanism and short-term forecast of retail prices.Test and comparative analysis were conducted.The last one based on possibilities of short-term forecasting of prices of DSM model with the well-known Holt-Winters method.For testing were set historical data on electricity prices in England and Wales,during the transition period from a model similar to the current model of the Ukrainian electricity market.展开更多
The Research on Market Risks has been developed abroad in all sorts of markets since 1960's. It's necessary to comprehend and consider opportunity and challenge in Chinese futures market from the viewpoint of risk m...The Research on Market Risks has been developed abroad in all sorts of markets since 1960's. It's necessary to comprehend and consider opportunity and challenge in Chinese futures market from the viewpoint of risk management. With different ARCH models, we find heteroscedasticity does exist in Chinese market, so we adopt the Variance Ratio. We test empirically the prices of Chinese futures market from 1993 to 2002. The results show that only futures price of copper meets the random walk, thereby confirming the weak form market efficiency. It also means that the function of price discovery is weak and the risk of futures market is poor. Finally, we give much constructive policy advice.展开更多
In order to meet the requirement of separating power plants from power network and that of the competition based power transaction in power market, the pricing decision support system for generation companies (GCPDSS)...In order to meet the requirement of separating power plants from power network and that of the competition based power transaction in power market, the pricing decision support system for generation companies (GCPDSS) is built in electricity market. This paper introduces the conception of intelligent decision support system (IDSS) and puts emphasis on the systematical structural framework, work process, design principal, and fundamental function of GCPDSS. The system has the module to analyze the cost, to forecast the demand of power, to construct the pricing strategies, to manage the pricing risk, and to dispatch giving the pricing strategies. The case study illustrates that the friendly window-based user interface of the system enables the user to take full advantage of the capabilities of the system in order to make effective real-time decisions.展开更多
This study investigates and compares the effects of the Coronavirus disease 2019(COVID-19)pandemic,the Chicago mercantile exchange(CME)'s negative price suggestion on prices and trading activities in the crude oil...This study investigates and compares the effects of the Coronavirus disease 2019(COVID-19)pandemic,the Chicago mercantile exchange(CME)'s negative price suggestion on prices and trading activities in the crude oil futures market to discuss the cause of negative crude oil futures prices.Through event studies,the empirical results show that the COVID-19 pandemic no longer impacts crude oil futures prices in April,2020 after controlled market risk,while the CME's negative prices suggestion can explain the crude oil futures price changes around and even after April 8,2020 to some degree.Moreover,this study uncovers anomalies in prices and trading activities by analyzing returns,trading volume,open interest,and illiquidity measures using vector autoregressive(VAR)models.The results imply that CME's allowing negative prices strengthens the price impact on trading volume and makes illiquidity risk matter.This study's results coincide with the following lawsuit evidence of market manipulation.展开更多
基金supported by National Natural Science Foundation of China(71974001,72374001)National Social Science Foundation of China(22ZDA112,19BTJ014)+3 种基金the Social Science Foundation of the Ministry of Education of China(21YJAZH081)Anhui Provincial Natural Science Foundation(2108085Y24)the University Social Science Research Project of Anhui Province(2022AH020048,SK2020A0051)the Anhui University of Finance and Economics Graduate Research Innovation Funds(ACYC2021390)。
文摘This study examines the systemic risk caused by major events in the international energy market(IEM)and proposes a management strategy to mitigate it. Using the tail-event driven network(TENET)method, this study constructed a tail-risk spillover network(TRSN) of IEM and simulated the dynamic spillover tail-risk process through the cascading failure mechanism. The study found that renewable energy markets contributed more to systemic risk during the Paris Agreement and the COVID-19pandemic, while fossil energy markets played a larger role during the Russia-Ukraine conflict. This study identifies systemically important markets(SM) and critical tail-risk spillover paths as potential sources of systemic risk. The research confirms that cutting off the IEM risk spillover path can greatly reduce systemic risk and the influence of SM. This study offers insights into the management of systemic risk in IEM and provides policy recommendations to reduce the impact of shock events.
文摘Electricity Market Act№2019-VIII passed in 2017 by the Verkhovna Rada of Ukraine enacts in July 2019 and causes the transition of this segment of the economy to the free market principles.The implementation of this Act is perceived ambiguous.Many experts criticize this Act,which have numerous risks,especially pricing risks.In order to better understand the implications of the enactment of the adopted Act,a study was carried out on the methodology of the pricing mechanism in the retail segment of the electricity market based on the Demand Side Management(DSM)approach.In the study,one of the varieties of DSM models was used–a dynamic demand-supply model for describing the pricing mechanism and short-term forecast of retail prices.Test and comparative analysis were conducted.The last one based on possibilities of short-term forecasting of prices of DSM model with the well-known Holt-Winters method.For testing were set historical data on electricity prices in England and Wales,during the transition period from a model similar to the current model of the Ukrainian electricity market.
文摘The Research on Market Risks has been developed abroad in all sorts of markets since 1960's. It's necessary to comprehend and consider opportunity and challenge in Chinese futures market from the viewpoint of risk management. With different ARCH models, we find heteroscedasticity does exist in Chinese market, so we adopt the Variance Ratio. We test empirically the prices of Chinese futures market from 1993 to 2002. The results show that only futures price of copper meets the random walk, thereby confirming the weak form market efficiency. It also means that the function of price discovery is weak and the risk of futures market is poor. Finally, we give much constructive policy advice.
基金NationalNaturalScienceFoundation (No .60 2 740 48) HebeiProvinceNaturalScienceFoundation (No .2 0 0 1ABB0 47)
文摘In order to meet the requirement of separating power plants from power network and that of the competition based power transaction in power market, the pricing decision support system for generation companies (GCPDSS) is built in electricity market. This paper introduces the conception of intelligent decision support system (IDSS) and puts emphasis on the systematical structural framework, work process, design principal, and fundamental function of GCPDSS. The system has the module to analyze the cost, to forecast the demand of power, to construct the pricing strategies, to manage the pricing risk, and to dispatch giving the pricing strategies. The case study illustrates that the friendly window-based user interface of the system enables the user to take full advantage of the capabilities of the system in order to make effective real-time decisions.
基金supported by Dr.Lu’s grants from the National Natural Science Foundation of China under Grant No.71871213Prof.Bu’s grants from the National Natural Science Foundation of China under Grant Nos.71671012 and 91846108。
文摘This study investigates and compares the effects of the Coronavirus disease 2019(COVID-19)pandemic,the Chicago mercantile exchange(CME)'s negative price suggestion on prices and trading activities in the crude oil futures market to discuss the cause of negative crude oil futures prices.Through event studies,the empirical results show that the COVID-19 pandemic no longer impacts crude oil futures prices in April,2020 after controlled market risk,while the CME's negative prices suggestion can explain the crude oil futures price changes around and even after April 8,2020 to some degree.Moreover,this study uncovers anomalies in prices and trading activities by analyzing returns,trading volume,open interest,and illiquidity measures using vector autoregressive(VAR)models.The results imply that CME's allowing negative prices strengthens the price impact on trading volume and makes illiquidity risk matter.This study's results coincide with the following lawsuit evidence of market manipulation.