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Foreign Trade Survey Data: Do They Help in Forecasting Exports and Imports? 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2022, 页码: 24
作者:  Bai Yun;  Wang Shouyang;  Zhang Xun
收藏  |  浏览/下载：59/0  |  提交时间：2023/02/07
ARIMAX  artificial neural network  composite index  forecasting  foreign trade  Granger causality test  survey data  
A Hierarchical Forecasting Model for China's Foreign Trade 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2020, 页码: 17
作者:  Sun, Yuying;  Zhang, Xun;  Wang, Shouyang
收藏  |  浏览/下载：133/0  |  提交时间：2020/06/30
Decomposed and combined models  exports and imports  forecasts  hierarchy  trade structure  
Attention Matters: An Exploration of Relationship Between Google Search Behaviors and Crude Oil Prices 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2019, 卷号: 32, 期号: 5, 页码: 1438-1459
作者:  Li Xin;  Zhang Xun;  Wang Shouyang;  Ma Jian
收藏  |  浏览/下载：168/0  |  提交时间：2020/01/10
Asymmetric response  crude oil prices  Google search  investor attention  Markov switching autoregressive model  
Did speculative activities contribute to high crude oil prices during 1993 to 2008? 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2009, 卷号: 22, 期号: 4, 页码: 636-646
作者:  Zhang, Xun;  Lai, Kin Keung;  Wang, Shouyang
收藏  |  浏览/下载：89/0  |  提交时间：2018/07/30
Crude oil prices  Diks-Panchenko test  Hiemstra-Jones test  nonlinear Granger causality test  speculative activities