Download or read book Econophysics of Systemic Risk and Network Dynamics written by Frédéric Abergel and published by Springer Science & Business Media. This book was released on 2012-08-08 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary goal of the book is to present the ideas and research findings of active researchers such as physicists, economists, mathematicians and financial engineers working in the field of “Econophysics,” who have undertaken the task of modeling and analyzing systemic risk, network dynamics and other topics. Of primary interest in these studies is the aspect of systemic risk, which has long been identified as a potential scenario in which financial institutions trigger a dangerous contagion mechanism, spreading from the financial economy to the real economy. This type of risk, long confined to the monetary market, has spread considerably in the recent past, culminating in the subprime crisis of 2008. As such, understanding and controlling systemic risk has become an extremely important societal and economic challenge. The Econophys-Kolkata VI conference proceedings are dedicated to addressing a number of key issues involved. Several leading researchers in these fields report on their recent work and also review contemporary literature on the subject.
Download or read book Systemic Risk and the Dynamics of Financial Networks written by Rui Gong and published by . This book was released on 2016 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper has two main objectives: first, to provide a formal definition of endogenous systemic risk that is firmly grounded in equilibrium dynamics of financial networks; and second, to construct a discounted stochastic game (DSG) model of the emergence of equilibrium network dynamics that fully takes into account the feedback between network structure, strategic behavior, and risk. Based on our definition of systemic risk we also propose a formal definition of tipping points. Using these tools we then provide a strategic approach to making global assessments of systemic risk in financial networks. Our approach is based on three key facts: (1) the equilibrium dynamics which emerge from the game of network formation generate finitely many disjoint basins of attraction as well as finitely many ergodic measures (implying that, starting from any financial network, in finite time with probability one, the dynamic sequence of financial networks arrives at one of these basins and once there stays there), (2) each basin of attraction is homogenous with respect to its default characteristics (meaning that if a basin contains states having a particular set of defaulted players, then all states contained in this basin have the same set of defaulted players), and (3) the unique profile of basins generated by the equilibrium dynamics carries with it a unique set of tipping points (special states) - and these tipping points provide an early warning of network failure.
Download or read book Endogenous Correlated Network Dynamics written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systemic Risk and the Dynamics of Temporary Financial Networks written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systemic Risk and Reinsurance written by Weidong Tian and published by MDPI. This book was released on 2020-07-01 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue covers the topic of timely vital risk management - systemic risk - from many important perspectives. It includes novel and scientific approaches from the network with topological indicators on systemic risk, community analysis of the global financial system, welfare analysis of capital insurance and the impact of capital requirement, risk measures, and optimal portfolio and optimal reinsurance under risk constraint. Most articles study the financial sector and insurance companies after the financial crisis of 2008–2009 circa ten years prior. The COVID-19 global pandemic in 2020 has caused similar or even greater challenges for the entire economy. Therefore, this Special Issue will be useful for anyone interested in systemic risk management.
Download or read book Econophysics and Data Driven Modelling of Market Dynamics written by Frédéric Abergel and published by Springer. This book was released on 2015-01-27 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the works and research findings of physicists, economists, mathematicians, statisticians, and financial engineers who have undertaken data-driven modelling of market dynamics and other empirical studies in the field of Econophysics. During recent decades, the financial market landscape has changed dramatically with the deregulation of markets and the growing complexity of products. The ever-increasing speed and decreasing costs of computational power and networks have led to the emergence of huge databases. The availability of these data should permit the development of models that are better founded empirically, and econophysicists have accordingly been advocating that one should rely primarily on the empirical observations in order to construct models and validate them. The recent turmoil in financial markets and the 2008 crash appear to offer a strong rationale for new models and approaches. The Econophysics community accordingly has an important future role to play in market modelling. The Econophys-Kolkata VIII conference proceedings are devoted to the presentation of many such modelling efforts and address recent developments. A number of leading researchers from across the globe report on their recent work, comment on the latest issues, and review the contemporary literature.
Download or read book Econophysics of Agent Based Models written by Frédéric Abergel and published by Springer Science & Business Media. This book was released on 2013-09-07 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary goal of this book is to present the research findings and conclusions of physicists, economists, mathematicians and financial engineers working in the field of "Econophysics" who have undertaken agent-based modelling, comparison with empirical studies and related investigations. Most standard economic models assume the existence of the representative agent, who is “perfectly rational” and applies the utility maximization principle when taking action. One reason for this is the desire to keep models mathematically tractable: no tools are available to economists for solving non-linear models of heterogeneous adaptive agents without explicit optimization. In contrast, multi-agent models, which originated from statistical physics considerations, allow us to go beyond the prototype theories of traditional economics involving the representative agent. This book is based on the Econophys-Kolkata VII Workshop, at which many such modelling efforts were presented. In the book, leading researchers in their fields report on their latest work, consider recent developments and review the contemporary literature.
Download or read book Econophysics of the Kolkata Restaurant Problem and Related Games written by Bikas K. Chakrabarti and published by Springer. This book was released on 2017-07-19 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first comprehensive introduction to multi-agent, multi-choice repetitive games, such as the Kolkata Restaurant Problem and the Minority Game. It explains how the tangible formulations of these games, using stochastic strategies developed by statistical physicists employing both classical and quantum physics, have led to very efficient solutions to the problems posed. Further, it includes sufficient introductory notes on information-processing strategies employing both classical statistical physics and quantum mechanics. Games of this nature, in which agents are presented with choices, from among which their goal is to make the minority choice, offer effective means of modeling herd behavior and market dynamics and are highly relevant to assessing systemic risk. Accordingly, this book will be of interest to economists, physicists, and computer scientists alike.
Download or read book The Importance of Heterogeneity in Dynamic Network Models Applied to European Systemic Risk written by Xingmin Zhang and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Standard spatial time-series models for financial networks can fail substantially in uncovering empirical network and risk dynamics. We propose a novel empirical spatial modeling framework that solves this problem by accommodating both heterogeneity and time-variation in economic connections and spillovers. While highly flexible, the model is still straightforward to estimate. We apply the model to several datasets for Eurozone sovereign credit risk during the sovereign debt crisis. Accounting for heterogeneity and time-variation turns out to be empirically important and the new model uncovers intuitive patterns that would go unnoticed otherwise in currently available homogeneous and/or static spatial financial network models.
Download or read book The Economics of Interfirm Networks written by Tsutomu Watanabe and published by Springer. This book was released on 2015-06-02 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is one of the first comprehensive works to fill the knowledge gap resulting from the limited number of empirical studies on interfirm networks. The in-depth empirical research presented here is based on a massive transaction relationship database of approximately 400,000 Japanese firms. This volume, unlike others, focuses on the role of interfirm networks in three different fields: (1) macroeconomic activities, (2) economic geography and firm dynamics, and (3) firm–bank relationships. The database for this work is constructed in collaboration with Japan's largest credit research company, Teikoku Data Bank, and covers a substantial portion of Japanese firms with information on firms' transaction partners, shareholders, financial institutions, and other attributes, including their locations and performance. Networks prevail in many aspects of economic activities and play a major role in explaining a wide variety of economic phenomena from business cycles to knowledge spillovers, which has motivated economists to produce a number of excellent works. In the policy arena, there has been a growing concern on the vulnerabilities of networks based on the casual observation that idiosyncratic shocks on firms can be amplified through inter-firm connections and leads to a systemic crisis. Typical examples are the manufacturing supply-chain networks in the automobile and electronics industries which propagated regionally concentrated shocks (the Great East Japan Earthquake and floods in Thailand in 2011) into global ones. An abundance of theoretical literature on the formation and functions of networks is available already. This book breaks new ground, however, and provides an excellent opportunity for the reader to gain a more integrated understanding of the role of networks in the economy. The Economics of Interfirm Networks will be of special interest to economists and practitioners seeking empirical and quantitative knowledge on interfirm and firm–bank networks.
Download or read book Econophysics written by Gheorghe Savoiu and published by Academic Press. This book was released on 2013 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The remarkable evolution of econophysics research has brought the deep synthesis of ideas derived from economics and physics to subjects as diverse as education, banking, finance, and the administration of large institutions. The original papers in this collection present a broad summary of these advances, written by interdisciplinary specialists. Included are studies on subjects in the development of econophysics; on the perspectives offered by econophysics on large problems in economics and finance, including the 2008-9 financial crisis; and on higher education and group decision making. The introductions and insights they provide will benefit everyone interested in applications of this new transdisciplinary science. Ten papers present an updated version of the origins, issues, and applications of econophysics Economics and finance chapters consider lessons learned from the 2008-9 financial crisis Sociophysics chapters propose new thinking on educational reforms and group decision making
Download or read book New Perspectives and Challenges in Econophysics and Sociophysics written by Frédéric Abergel and published by Springer. This book was released on 2019-04-02 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest perspectives and challenges within the interrelated fields of econophysics and sociophysics, which have emerged from the application of statistical physics to economics and sociology. Economic and financial markets appear to be in a permanent state of flux. Billions of agents interact with each other, giving rise to complex dynamics of economic quantities at the micro and macro levels. With the availability of huge data sets, researchers can address questions at a much more granular level than was previously possible. Fundamental questions regarding the aggregation of actions and information and the coordination, complexity, and evolution of economic and financial networks are currently receiving much attention in the econophysics research agenda. In parallel, the sociophysics literature has focused on large-scale social data and their interrelations. In this book, leading researchers from different communities – economists, sociologists, financial analysts, mathematicians, physicists, statisticians, and others – report on their recent work and their analyses of economic and social behavior.
Download or read book Econophysics and Sociophysics Recent Progress and Future Directions written by Frédéric Abergel and published by Springer. This book was released on 2017-01-11 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings from ECONOPHYS-2015, an international workshop held in New Delhi, India, on the interrelated fields of “econophysics” and “sociophysics”, which have emerged from the application of statistical physics to economics and sociology. Leading researchers from varied communities, including economists, sociologists, financial analysts, mathematicians, physicists, statisticians, and others, report on their recent work, discuss topical issues, and review the relevant contemporary literature. A society can be described as a group of people who inhabit the same geographical or social territory and are mutually involved through their shared participation in different aspects of life. It is possible to observe and characterize average behaviors of members of a society, an example being voting behavior. Moreover, the dynamic nature of interaction within any economic sector comprising numerous cooperatively interacting agents has many features in common with the interacting systems of statistical physics. It is on these bases that interest has grown in the application within sociology and economics of the tools of statistical mechanics. This book will be of value for all with an interest in this flourishing field.
Download or read book Econophysics written by Gheorghe Săvoiu and published by Elsevier Inc. Chapters. This book was released on 2012-11-27 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Systemic Risk Networks written by Sanjiv Ranjan Das and published by . This book was released on 2017 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: We propose a theory-driven framework for monitoring system-wide risk. Our approach extends the one-firm Merton (1974) credit risk model to a generalized stochastic network-based framework across all financial institutions, comprising a novel approach to measuring systemic risk over time. We develop four desired properties for any systemic risk measure. We also develop measures for the risks created by each individual institution and a measure for risk created by each pairwise connection between institutions. Four specific implementation models are then explored, and brief empirical examples illustrate the ease of implementation of these four models and show general consistency between their results.
Download or read book Self Organized Criticality Three Decades Later written by Subhrangshu Sekhar Manna and published by Frontiers Media SA. This book was released on 2022-01-28 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Oxford Handbook of the Economics of Prostitution written by Scott Cunningham and published by Oxford University Press. This book was released on 2016-08-10 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prostitution bears the unique title of being both the "world's oldest profession" and one of the least understood occupations. Unlike most of the crime and family literature, prostitution appears to have all the features of traditional markets: prices, supply and demand considerations, variety in the organizational structure, and policy relevance. Despite this, economists have largely ignored prostitution in their research and writings. This has been changing, however, over the last twenty years as greater access to data has enabled economists to build better theories and gain a better understanding of the organization of sex market. The Oxford Handbook of the Economics of Prostitution fills the gap in our understanding. It brings together many of the top researchers in the field who explain how the prostitution markets are organized across space and time, the role of technology in shaping labor supply and demand, the intersection of prostitution with trafficking, and the optimal use of law enforcement. What makes the material unique is its explicit focus on economics as the primary methodology for organizing our understanding of prostitution. The Handbook brings to scholars' attention for the first time a collection of original writings on prostitution that provides an overview of what is known and what is not known in this area. Researchers with an interest in underground markets, labor economics, risky behaviors, marriage, and gender will find the book's contents illuminating and path breaking.
