超越对互动的三角结构影响了世界贸易网络的稳定性
Wan Wang1, Zhuoming Ren1, Yu Lin1
1Alibaba Business School, Hangzhou Normal University, Hangzhou 311121, China.
Chaos (Woodbury, N.Y.)
|February 21, 2025
概括
高级贸易网络,代表群体互动,表现出复杂性增加的稳定性. 然而,无规模网络是脆弱的,强调需要多边联系来加强全球贸易的弹性.
科学领域:
- 网络科学 网络科学
- 国际贸易分析 国际贸易分析
- 复杂的系统复杂的系统.
背景情况:
- 传统的网络分析往往忽略了更高层次的交互.
- 了解世界贸易网络的稳定性对于全球经济稳定至关重要.
- 填充的三角形 (二-simplexes) 代表了复杂系统中基本的群体相互作用.
研究的目的:
- 分析更高层次相互作用对世界贸易网络稳定性的影响.
- 通过使用多边贸易协定和进出口数据,构建和检查双简单贸易网络.
- 确定影响贸易网络随时间的弹性因素.
主要方法:
- 构建两个简单的高层贸易网络,整合多边区域贸易协定和世界贸易数据.
- 对网络演变的拓分析,包括2020年的规模,复杂性和变化.
- 节点攻击模拟以评估网络的稳定性,以免关键节点被移除.
- 使用随机简单复合 (RSC) 和无尺度简单复合 (SFSC) 模型生成合成贸易网络.
主要成果:
- 世界贸易网络在规模和复杂性方面表现出显著的增长,在2020年出现下降.
- 网络稳定性通常随着规模和复杂性而提高,但在2020年下降.
- 增加平均度增强了强度;增加节点或填充三角形本身就会削弱它.
- 与随机简化复合体相比,无规模网络由于枢纽漏洞显示出较低的稳定性.
结论:
- 多边互动和加强联系对于加强世界贸易网络的稳定性至关重要.
- 网络结构,特别是高阶交互和节点连接之间的平衡,决定了弹性.
- 这些发现为保护全球贸易免受破坏提供了洞察力.
更多相关视频
09:49Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks
Published on: September 25, 2021
4.3K
06:35Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
8.0K
相关概念视频
Space Trusses: Problem Solving
539
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. Due to its adaptability and capacity to withstand complex loads, the space truss is widely used in various construction projects.
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
539
Space Trusses
738
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. The space truss is widely used in various construction projects due to its adaptability and capacity to withstand complex loads.
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...
738
Stability of structures
153
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
153
Simple Trusses
1.6K
A truss is a structural framework consisting of slender members connected at joints, designed to support external loads while minimizing material usage and weight. Simple trusses are a type of planar truss where all members lie within a single two-dimensional plane.
The most basic planar truss is a simple truss with three members arranged in a triangular formation. This triangular truss is inherently stable and rigid due to its geometry, making it an ideal starting point for creating more...
The most basic planar truss is a simple truss with three members arranged in a triangular formation. This triangular truss is inherently stable and rigid due to its geometry, making it an ideal starting point for creating more...
1.6K
Torsion of Noncircular Members
120
Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
120
Relationship Formation
39.6K
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
39.6K
