scholarly journals Complexities in Financial Network Topological Dynamics: Modeling of Emerging and Developed Stock Markets

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-31 ◽  
Author(s):  
Yong Tang ◽  
Jason Jie Xiong ◽  
Zi-Yang Jia ◽  
Yi-Cheng Zhang
Keyword(s):  
Network Analysis ◽  
Financial Markets ◽  
Portfolio Management ◽  
Network Theory ◽  
Stock Markets ◽  
Hierarchical Structures ◽  
The United States ◽  
Dynamics Modeling ◽  
Financial Network ◽  
Complex Network Theory

Policy makings and regulations of financial markets rely on a good understanding of the complexity of financial markets. There have been recent advances in applying data-driven science and network theory into the studies of social and financial systems. Financial assets and institutions are strongly connected and influence each other. It is essential to study how the topological structures of financial networks could potentially influence market behaviors. Network analysis is an innovative method to enhance data mining and knowledge discovery in financial data. With the help of complex network theory, the topological network structures of a market can be extracted to reveal hidden information and relationships among stocks. In this study, two major markets of the most influential economies, China and the United States, are systematically studied from the perspective of financial network analysis. Results suggest that the network properties and hierarchical structures are fundamentally different for the two stock markets. The patterns embedded in the price movements are revealed and shed light on the market dynamics. Financial policymakers and regulators can gain inspiration from these findings for applications in policy making, regulations design, portfolio management, risk management, and trading.

scholarly journals The South African Banking Director Network: An Investigation Into Interlocking Directorships Using Social Network Analysis (SNA)

2014 ◽  
Vol 13 (5) ◽  
pp. 963
Author(s):  
Burgert A. Senekal ◽  
Karlien Stemmet
Keyword(s):  
Social Network ◽  
Social Network Analysis ◽  
Network Analysis ◽  
Complex Systems ◽  
South African ◽  
Complex Network ◽  
Network Theory ◽  
Complex Network Theory ◽  
International Trends ◽  
Director Network

The theory of complex systems has gained significant ground in recent years, and with it, complex network theory has become an essential approach to complex systems. This study follows international trends in examining the interlocking South African bank director network using social network analysis (SNA), which is shown to be a highly connected social network that has ties to many South African industries, including healthcare, mining, and education. The most highly connected directors and companies are identified, along with those that are most central to the network, and those that serve important bridging functions in facilitating network coherence. As this study is exploratory, numerous suggestions are also made for further research.

scholarly journals Study on the Evolution Characteristics of International Nickel Ores Trade from Perspective of Complex Networks

2020 ◽  
Vol 143 ◽  
pp. 02050
Author(s):  
Yun Ding
Keyword(s):  
International Trade ◽  
Network Theory ◽  
The United States ◽  
Distribution Analysis ◽  
Power Law Distribution ◽  
Complex Network Theory ◽  
Core Country ◽  
Evolution Characteristics ◽  
Nickel Ores ◽  
Trading Network

In order to analyze the evolution characteristics of nickel ores international trade structure, this paper builds up the network model by adopting the complex network theory. Based on the International trade data of nickel ores from 2007 to 2018, we analyze the overall pattern of trade network, core country identification and the power-law distribution analysis. According to the research, it is found that China and the United States have a strong influence in the international nickel ores trading network. The more nickel producing counties participated in this trade and the international nickel ore market commenced to globalization.

scholarly journals Assessing the risk of default propagation in interconnected sectoral financial networks

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Adrià Barja ◽  
Alejandro Martínez ◽  
Alex Arenas ◽  
Pablo Fleurquin ◽  
Jordi Nin ◽  
...  
Keyword(s):  
Financial Institutions ◽  
Systemic Risk ◽  
Network Theory ◽  
Real Data ◽  
Financial Networks ◽  
Financial Network ◽  
Full System ◽  
Complex Network Theory ◽  
The Impact ◽  
Shed Light

Abstract Systemic risk of financial institutions and sectoral companies relies on their inter-dependencies. The inter-connectivity of the financial networks has proven to be crucial to understand the propagation of default, as it plays a central role to assess the impact of single default events in the full system. Here, we take advantage of complex network theory to shed light on the mechanisms behind default propagation. Using real data from the BBVA, the second largest bank in Spain, we extract a financial network from customer-supplier transactions among more than $140\text{,}000$ 140 , 000 companies, and their economic flows. Then, we introduce a computational model, inspired by the probabilities of default contagion, that allow us to obtain the main statistics of default diffusion given the network structure at individual and system levels. Our results show the exposure of different sectors to default cascades, therefore allowing for a quantification and ranking of sectors accordingly. This information is relevant to propose countermeasures to default propagation in specific scenarios.

Research on the Evolution of the Complex Network Theory Based on the International Coal Trade

2014 ◽  
Vol 672-674 ◽  
pp. 2173-2177
Author(s):  
Yang Yang He ◽  
Ling Wang
Keyword(s):  
Network Analysis ◽  
Complex Network ◽  
Network Theory ◽  
Clustering Coefficient ◽  
Node Degree ◽  
Degree Centrality ◽  
Trade Data ◽  
Complex Network Theory ◽  
The Difference ◽  
Coal Trade

According to the international coal trade data of the years from 1996 to 2011 published by UN COMTRADE (UNSD), it can be inferred that the data is mainly about international trade of raw coal and related coal products. By adopting the theory of complex network analysis, this paper calculates the complex network of international coal trade in the aspect of its density, node degree, centrality, point strength, clustering coefficient. Based on these properties, this paper further analyzes the evolution rule for international coal trade network of raw coal, coal briquettes and ovate coal over the last 16 years, as well as the difference between the pre-and after financial crisis.

scholarly journals Critical Hazards Identification and Prevention of Cascading Escalator Accidents at Metro Rail Transit Stations

2020 ◽  
Vol 17 (10) ◽  
pp. 3400
Author(s):  
Zhiru Wang ◽  
Ran S. Bhamra ◽  
Min Wang ◽  
Han Xie ◽  
Lili Yang
Keyword(s):  
Network Analysis ◽  
Complex Network ◽  
Network Theory ◽  
Preventive Measures ◽  
Management Plan ◽  
Rail Transit ◽  
Analysis Method ◽  
Cascading Effects ◽  
Complex Network Theory ◽  
Passenger Behavior

Escalator accidents not only happen frequently but also have cascading effects. The purpose of this study is to block the formation of cascading accident networks by identifying and preventing critical hazards. A modified five-step task-driven method (FTDM) is proposed to break down passenger-related cascading escalator accidents. Three complex network parameters in complex network theory are utilized to identify critical and non-critical Risk Passenger Behavior (RPB) hazards and Other Hazards related with Risk Passenger Behavior (OH-RPB) in accident chains. A total of 327 accidents that occurred in the Beijing metro rail transit (MRT) stations were used for case studies. The results are consistent in critical and non-critical RPB and OH-RPB and prove that through combination of FTDM accident investigation model and complex network analysis method, critical and non-critical RPB and OH-RPB in a complicated cascading hazards network can be identified. Prevention of critical RPB can block the formation of cascading accident networks. The method not only can be used by safety manager to make the corresponding preventive measures according to the results in daily management but also the findings can guide the allocation of limited preventive resources to critical hazards rather than non-critical hazards. Moreover, the defects of management plan and product design can be re-examined according to the research results.

Ocena antykryzysowej polityki gospodarczej Stanów Zjednoczonych i wybranych państw członkowskich Unii Europejskiej w latach 2005–2014

2016 ◽  
pp. 26-46
Author(s):  
Marcin Jan Flotyński
Keyword(s):  
United States ◽  
European Union ◽  
Financial Markets ◽  
Global Economy ◽  
Global Financial Crisis ◽  
The United States ◽  
The European Union ◽  
High Volatility ◽  
The Global Financial Crisis ◽  
Domestic Products

The global financial crisis in 2007–2009 began a period of high volatility on the financial markets. Specifically, it caused an increased amplitude of fluctuations of the level of gross domestic products, the level of investment and consumption and exchange rates in particular countries. To address the adverse market circumstances, governments and central banks took actions in order to bolster the weakening global economy. The aim of this article is to present the anti-crisis actions in the United States and selected member states of the European Union, including Poland, and an assessment of their efficiency. The analysis conducted indicates that generally the actions taken in the United States in response to the crisis were faster and more adequate to the existing circumstances than in the European Union.

Disruptive Soft Law and Post-Crisis US Reform

2018 ◽  
Author(s):  
Abraham L. Newman ◽  
Elliot Posner
Keyword(s):  
Financial Markets ◽  
Great Recession ◽  
Regulatory Reform ◽  
The United States ◽  
Soft Law ◽  
Long Term Effects ◽  
The Great Recession ◽  
The Us ◽  
International Interaction

Chapter 6 examines the long-term effects of international soft law on policy in the United States since 2008. The extent and type of post-crisis US cooperation with foreign jurisdictions have varied considerably with far-reaching ramifications for international financial markets. Focusing on the international interaction of reforms in banking and derivatives, the chapter uses the book’s approach to understand US regulation in the wake of the Great Recession. The authors attribute seemingly random variation in the US relationship to foreign regulation and markets to differences in pre-crisis international soft law. Here, the existence (or absence) of robust soft law and standard-creating institutions determines the resources available to policy entrepreneurs as well as their orientation and attitudes toward international cooperation. Soft law plays a central role in the evolution of US regulatory reform and its interface with the rest of the world.

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