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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 发表日期：2022    内容类型：期刊论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 The relationship between geopolitical risk and crude oil prices: evidence from nonlinear and frequency domain causality tests 期刊论文 SPANISH JOURNAL OF FINANCE AND ACCOUNTING-REVISTA ESPANOLA DE FINANCIACION Y CONTABILIDAD, 2022, 页码: 23 作者:  Jiang, Yong;  Ren, Yi-Shuai;  Yang, Xiao-Guang;  Ma, Chao-Qun;  Weber, Olaf 收藏  |  浏览/下载：16/0  |  提交时间：2023/02/07 Geopolitical risk  oil prices  nonlinear analysis  Granger causality  frequency domain   Financial hedging in two-stage sustainable commodity supply chains 期刊论文 EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, 2022, 卷号: 303, 期号: 2, 页码: 803-818 作者:  Wang, Moran;  Guo, Xiaolong;  Wang, Shouyang 收藏  |  浏览/下载：17/0  |  提交时间：2023/02/07 Risk analysis  Financial hedging  Index-based price contract  Sustainable supply chain management  Competition   A novel machine learning-based electricity price forecasting model based on optimal model selection strategy 期刊论文 ENERGY, 2022, 卷号: 238, 页码: 14 作者:  Yang, Wendong;  Sun, Shaolong;  Hao, Yan;  Wang, Shouyang 收藏  |  浏览/下载：14/0  |  提交时间：2022/04/02 Electricity price  Forecasting  Hybrid model  Model selection  Kernel-based extreme learning machine   Conserved responses of nutrient resorption to extreme drought in a grassland: The role of community compositional changes 期刊论文 FUNCTIONAL ECOLOGY, 2022, 卷号: 36, 期号: 10, 页码: 2616-2625 作者:  Liang, Xiao-Sa;  Ma, Wang;  Yu, Qiang;  Luo, Wen-Tao;  Wang, Zheng-Wen 收藏  |  浏览/下载：2/0  |  提交时间：2024/03/07 drought type  grassland  nutrient resorption  Price equation  species composition