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A study on transport costs and China's Exports: An extended gravity model 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2017, 卷号: 30, 期号: 6, 页码: 1403-1424
作者:  Xu, Lizhi;  Lai, Kin Keung;  Qiao, Han;  Wang, Shouyang
收藏  |  浏览/下载：168/0  |  提交时间：2018/07/30
Extended gravity model  transport costs  port efficiency  manufacturing base  processing center  
The Effect of Corporate Governance on Debt Financing Cost of Listed Companies 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2016, 卷号: 29, 期号: 3, 页码: 772-788
作者:  Li Lin;  Dong Fangyu;  Liu Yifang;  Huang Haijun;  Wang Shouyang
收藏  |  浏览/下载：111/0  |  提交时间：2018/07/30
Corporate governance  debt financing cost  property rights  
Global stability of an age-structured sir epidemic model with pulse vaccination strategy 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2012, 卷号: 25, 期号: 3, 页码: 417-429
作者:  Liu Helong;  Yu Jingyuan;  Zhu Guangtian
收藏  |  浏览/下载：89/0  |  提交时间：2021/01/14
INFECTION-AGE  THRESHOLD  MEASLES  Impulsive differential equations  impulsive period  infection age  infection-free situation  optimal vaccination strategy  
Inverse Center Location Problem on a Tree 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2008, 卷号: 21, 期号: 4, 页码: 651-664
作者:  Yang, Xiaoguang;  Zhang, Jianzhong
收藏  |  浏览/下载：86/0  |  提交时间：2018/07/30
Center location  combinatorial linear program  tree  two-terminal series parallel graphs