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Dependence risk analysis in energy, agricultural and precious metals commodities: a pair vine copula approach

机译:能源,农业和贵金属商品中的依赖风险分析:一对藤蔓豆荚

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摘要

We apply pair vine copulas, specifically the C-vine and R-vine copulas, to examine the conditional multivariate dependence pattern/structure and R-vine copula-based value-at-risk (VaR) to assess financial portfolio risk. We examine the co-dependencies of 13 major commodity markets (which include three energy commodities, six agricultural commodities and four precious metals prices) from 2 January 2003 to 19 December 2016. Dividing our sample into three sub-periods, namely pre-GFC, GFC and post-GFC, we find that the dependencies among commodities undergo changes in a complex manner, changing in different financial conditions, and that the Student-t copula appears on the maximum number of occasions, especially during the GFC period, signifying the existence of fatter tails in the distributions of returns. We further show that the co-dependencies computed using R-vine copulas are best suited to compute the portfolio VaR during the considered time period.
机译:我们申请成对藤币,特别是C-VINE和R-VINE Copulas,以检查条件多变量依赖模式/结构和基于R-VINE Copula的价值(VAR),以评估金融组合风险。我们从2003年1月2日至2016年12月19日审视了13个主要商品市场(其中包括三个能源商品,六种农产品和四种贵金属价格)的共同依赖性。将我们的样品分成三个子期,即预先GFC, GFC和后GFC,我们发现商品之间的依赖性以复杂的方式进行变化,在不同的财务条件下变化,并且学生-T copula出现在最大次数,特别是在GFC期间,表示存在在回报的分布中胖的尾部。我们进一步表明,使用R-VINE Copulas计算的共同依赖性最适合在考虑的时间段期间计算POSTFOLIO VAR。

著录项

  • 来源
    《Applied Economics》 |2020年第30期|3055-3072|共18页
  • 作者单位

    ICFAI Fdn Higher Educ IBS Hyderabad Hyderabad India;

    Rajagiri Business Sch Rajagiri Valley Campus Kochi Kerala India;

    European Xtramile Ctr African Studies Liege Belgium;

    Chinese Acad Sci Inst Sci & Dev Ctr Energy & Environm Policy Res Beijing Peoples R China|Univ Chinese Acad Sci Sch Publ Policy & Management Beijing Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    R-vine; VaR; dependence structure; tree structure; commodity markets;

    机译:R- vine;var;依赖结构;树结构;商品市场;

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