Results 41 to 50 of about 7,683 (263)
Estimation of Copula Density Using the Wavelet Transform
مجلة بغداد للعلومThis paper proposes a new method to estimate the copula density function using wavelet decomposition as a nonparametric method, to obtain more accurate results and address the issue of boundary effects that nonparametric estimation methods suffer from ...
Fatimah Hashim Falhi +1 more
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Trivariate joint frequency analysis of water resources deficiency signatures using vine copulas
Applied Water Science, 2022 Investigating the interaction of water resources such as rainfall, river flow and groundwater level can be useful to know the behavior of water balance in a basin.
Mohammad Nazeri Tahroudi +3 more
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Business Strategy and the Environment, EarlyView.ABSTRACT Small enterprises (SEs) constitute a major component of economic systems, and their socio‐environmental commitment is critical for promoting societal well‐being. This paper examines the direct effect of sound financial practices on socio‐environmental commitment and evaluates the mediating role of financial constraints—specifically debt and ...
Marcos Álvarez‐Espiño +2 more
wiley +1 more source
ESTIMASI NILAI CONDITIONAL VALUE AT RISK (CVaR) PORTOFOLIO MENGGUNAKAN METODE EVT-GJR-VINE COPULA
E-Jurnal Matematika, 2019 Conditional value at risk (CVaR) is widely used in risk measure that takes into account losses exceeding the value at risk level. The aim of this research is to compare the performance of the EVT-GJR-vine copula method and EVT-GARCH-vine copula method in
NI WAYAN UCHI YUSHI ARI SUDINA +2 more
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The Role of Institutional Pressures in Technology Adoption for Low‐Carbon Manufacturing
Business Strategy and the Environment, EarlyView.ABSTRACT Existing research highlights that the adoption of low‐carbon technologies in manufacturing operations is shaped by the external environment. However, limited understanding exists regarding how technology‐related uncertainty interacts with institutional pressures to influence firms' adoption strategies.
Diellza Salihu +2 more
wiley +1 more source
Electronic Journal of Statistics, 2014 We propose notions of calibration for probabilistic forecasts of general multivariate quantities. Probabilistic copula calibration is a natural analogue of probabilistic calibration in the univariate setting. It can be assessed empirically by checking for the uniformity of the copula probability integral transform (CopPIT), which is invariant under ...
Johanna F. Ziegel, Tilmann Gneiting
openaire +3 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT As sustainability transitions accelerate, firms increasingly engage in innovation ecosystems to pursue disruptive sustainable innovation (DSI). Nevertheless, empirical understanding regarding how innovation ecosystem coopetition—simultaneous cooperation and competition among interdependent actors—translates into sustainability‐oriented ...
Jin‐Sup Jung, Min‐Jae Lee
wiley +1 more source
Multiplicative Archimedean Copula(乘积阿基米德Copula)
Zhejiang Daxue xuebao. Lixue ban, 2010 在乘法模式下,对阿基米德Copula进行了推广,提出了乘积阿基米德Copula.通过构造两类特殊的乘积阿基米德Copula,举出了若干乘积阿基米德Copula例子,并分析了关于尾部相依性、对称性等方面的性质.最后,在探讨阿基米德Copula和乘积阿基米德Copula的关系中,提出几个值得进一步讨论的问题.
WANGQin(王沁) +2 more
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Regresi Median Pada Copula Bivariat
JTAM (Jurnal Teori dan Aplikasi Matematika), 2019 Abstrak: Analisis regresi adalah analisis yang sering digunakan dalam segala bidang yang bertujuan untuk memodelkan hubungan antara dua jenis variabel tak bebas dengan satu atau variabel bebas. Regresi linier masih memiliki beberapa kekurangan, maka dari
Geraldus Anggoro Rinadi +2 more
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Correlation analysis of financial assets based on asymmetric copula
Frontiers in Applied Mathematics and Statistics, 2022 Based on the asymmetric copula function, this paper analyzes the static and dynamic correlation between Shanghai Composite Index and Shenzhen Composite Index.
Xia Li, Bing Hou
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