The digital economy,as a new emerging economic form,has become an important power for realizing Chinese-style modernization and promoting green development in China.This paper measures the digital economy and low-carb...The digital economy,as a new emerging economic form,has become an important power for realizing Chinese-style modernization and promoting green development in China.This paper measures the digital economy and low-carbon transition index based on the data of 30 provinces in China from 2013 to 2020 and analyzes the mechanism and path of the digital economy affecting low-carbon transition using the fixed effect panel data model and the threshold effect model.It is found that,(1)The digital economy and low-carbon transition in China are various in different regions,with characteristics of being unbalanced and insufficient.(2)The digital economy significantly promotes low-carbon transition,with the greatest influence in the Central region,followed by the Eastern region and the Western region.Under different dimensions,the development of informatization and digital transactions promote low-carbon transition,but the development of the internet plays an inhibiting role.(3)The higher the degree of urbanization and environmental regulation,the greater the influence of the digital economy on low-carbon transition.展开更多
在文献中,分位点回归模型是线性的,但是在实际中,这个假设不能很好地满足需要.为此提出了分位点回归的门限模型,用该模型实证分析了单只股票(浦东发展银行)的条件 VaR.选择了一种流动性风险指标作为条件,因此该条件 VaR 也可以看作是流...在文献中,分位点回归模型是线性的,但是在实际中,这个假设不能很好地满足需要.为此提出了分位点回归的门限模型,用该模型实证分析了单只股票(浦东发展银行)的条件 VaR.选择了一种流动性风险指标作为条件,因此该条件 VaR 也可以看作是流动性调整的 VaR(La-VaR).经过实证分析发现,由门限分位点模型得到的结果能够更好地描述实际市场情况,也能更好地预测市场风险.展开更多
知情交易概率(probability of informed trading,PIN)是市场微观结构中度量知情交易的一种重要度量方法.给出了一种基于交易量的PIN估计方法VPIN(volume-synchronized probability of informed trading).并应用门限分位点回归模型分析了...知情交易概率(probability of informed trading,PIN)是市场微观结构中度量知情交易的一种重要度量方法.给出了一种基于交易量的PIN估计方法VPIN(volume-synchronized probability of informed trading).并应用门限分位点回归模型分析了VPIN与收益率之间的非线性结构关系,给出了VPIN条件下市场风险(conditional value at risk,CVaR)的度量方法.最后对上证综指数据进行了实证分析,实证结果表明VPIN和日收益率之间存在着较为显著的关系,VPIN越大,相应的市场风险CVaR越小.展开更多
基金supported by the Fund of Fujian Provincial Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era(Grant No.FJ2023XZB057)Major Project Fund of Fujian Provincial Social Science Research Base(Grant No.FJ2023JDZ021).
文摘The digital economy,as a new emerging economic form,has become an important power for realizing Chinese-style modernization and promoting green development in China.This paper measures the digital economy and low-carbon transition index based on the data of 30 provinces in China from 2013 to 2020 and analyzes the mechanism and path of the digital economy affecting low-carbon transition using the fixed effect panel data model and the threshold effect model.It is found that,(1)The digital economy and low-carbon transition in China are various in different regions,with characteristics of being unbalanced and insufficient.(2)The digital economy significantly promotes low-carbon transition,with the greatest influence in the Central region,followed by the Eastern region and the Western region.Under different dimensions,the development of informatization and digital transactions promote low-carbon transition,but the development of the internet plays an inhibiting role.(3)The higher the degree of urbanization and environmental regulation,the greater the influence of the digital economy on low-carbon transition.
文摘在文献中,分位点回归模型是线性的,但是在实际中,这个假设不能很好地满足需要.为此提出了分位点回归的门限模型,用该模型实证分析了单只股票(浦东发展银行)的条件 VaR.选择了一种流动性风险指标作为条件,因此该条件 VaR 也可以看作是流动性调整的 VaR(La-VaR).经过实证分析发现,由门限分位点模型得到的结果能够更好地描述实际市场情况,也能更好地预测市场风险.
文摘知情交易概率(probability of informed trading,PIN)是市场微观结构中度量知情交易的一种重要度量方法.给出了一种基于交易量的PIN估计方法VPIN(volume-synchronized probability of informed trading).并应用门限分位点回归模型分析了VPIN与收益率之间的非线性结构关系,给出了VPIN条件下市场风险(conditional value at risk,CVaR)的度量方法.最后对上证综指数据进行了实证分析,实证结果表明VPIN和日收益率之间存在着较为显著的关系,VPIN越大,相应的市场风险CVaR越小.