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Financial Networks
A financial network is a concept describing any collection of financial entities (such as traders, firms, banks and financial exchanges) and the links between them, ideally through direct transactions or the ability to mediate a transaction. A common example of a financial network link is security holdings (e.g. stock of publicly traded companies), where a firm’s ownership of stock would represent a link between the stock and the firm. In network science terms, financial networks are composed of financial nodes, where nodes represent financial institutions or participants, and of edges, where edges represent formal or informal relationships between nodes (i.e. stock or bond ownership). History The concept and use of financial networks has emerged in response to the observation that modern financial systems exhibit a high degree of interdependence. Globalization has magnified the level of financial interdependence across many kinds of organizations. Shares, assets, and financial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cascades In Financial Networks
Cascades in financial networks are situations in which the failure of one financial institution causes a cascading failure in another member of the financial network. In an extreme this can cause failure of the whole network in what is known as systemic failure. It can be defined as the discontinuous value loss (e.g. default) of the organization caused by the discontinuous value loss of another organization in the network. There are three conditions required for a cascade, there are; a failure, contagion and interconnection. Diversification and integration in the financial network determine whether and how failures will spread. Using the data on cross-holdings of organizations and on the value of organizations, it is possible to construct the dependency matrix to simulate cascades in the financial network. Diversification and integration Elliot, Golub and Jackson (2013) characterize the financial network by diversification and integration. Diversification means to which extent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trader (finance)
A trader is a person, firm, or entity in finance who buys and sells financial instruments, such as forex, cryptocurrencies, stocks, bonds, commodities, derivatives, and mutual funds in the capacity of agent, hedger, arbitrageur, or speculator. Duties and types Traders buy and sell financial instruments traded in the stock markets, derivatives markets and commodity markets, comprising the stock exchanges, derivatives exchanges, and the commodities exchanges. Several categories and designations for diverse kinds of traders are found in finance, including: *Bond trader *Floor trader *Hedge fund trader *High-frequency trader *Market maker *Pattern day trader * Principal trader * Proprietary trader *Rogue trader *Scalper *Stock trader Income According to the Wall Street Journal in 2004, a managing director convertible bond trader was earning between $700,000 and $900,000 on average. See also *Commodities exchange *Commodity market *Derivatives market *List of commodity traders *Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1998 Russian Financial Crisis
The Russian financial crisis (also called the ruble crisis or the Russian flu) began in Russia on 17 August 1998. It resulted in the Russian government and the Russian Central Bank devaluing the ruble and defaulting on its debt. The crisis had severe impacts on the economies of many neighboring countries. Background and course of events The Russian economy had set up a path for improvement after the Soviet Union had split into different countries. Russia was supposed to provide assistance to the former Soviet states and, as a result, imported heavily from them. In Russia, foreign loans financed domestic investments. When it was unable to pay back those foreign borrowings, the ruble devalued. In mid-1997 Russia had finally found a way out of inflation. The economic supervisors were happy about inflation coming to a standstill. Then the crisis hit and supervisors had to implement a new policy. Both Russia and the countries that exported to it experienced fiscal deficits. The cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cascading Failure
A cascading failure is a failure in a system of interconnected parts in which the failure of one or few parts leads to the failure of other parts, growing progressively as a result of positive feedback. This can occur when a single part fails, increasing the probability that other portions of the system fail. Such a failure may happen in many types of systems, including power transmission, computer networking, finance, transportation systems, organisms, the human body, and ecosystems. Cascading failures may occur when one part of the system fails. When this happens, other parts must then compensate for the failed component. This in turn overloads these nodes, causing them to fail as well, prompting additional nodes to fail one after another. In power transmission Cascading failure is common in power grids when one of the elements fails (completely or partially) and shifts its load to nearby elements in the system. Those nearby elements are then pushed beyond their capacity s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Systemic Risk
In finance, systemic risk is the risk of collapse of an entire financial system or entire market, as opposed to the risk associated with any one individual entity, group or component of a system, that can be contained therein without harming the entire system.Banking and currency crises and systemic risk George G. Kaufman (World Bank), It can be defined as "financial ''system'' instability, potentially catastrophic, caused or exacerbated by idiosyncratic events or conditions in financial intermediaries". It refers to the risks imposed by ''interlinkage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrality
In graph theory and network analysis, indicators of centrality assign numbers or rankings to nodes within a graph corresponding to their network position. Applications include identifying the most influential person(s) in a social network, key infrastructure nodes in the Internet or urban networks, super-spreaders of disease, and brain networks. Centrality concepts were first developed in social network analysis, and many of the terms used to measure centrality reflect their sociological origin.Newman, M.E.J. 2010. ''Networks: An Introduction.'' Oxford, UK: Oxford University Press. Definition and characterization of centrality indices Centrality indices are answers to the question "What characterizes an important vertex?" The answer is given in terms of a real-valued function on the vertices of a graph, where the values produced are expected to provide a ranking which identifies the most important nodes. The word "importance" has a wide number of meanings, leading to many diffe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multidimensional Network
In network theory, multidimensional networks, a special type of ''multilayer network'', are networks with multiple kinds of relations. Increasingly sophisticated attempts to model real-world systems as multidimensional networks have yielded valuable insight in the fields of social network analysis, economics, urban and international transport, ecology, psychology, medicine, biology, commerce, climatology, physics, computational neuroscience, operations management, and finance. Terminology The rapid exploration of complex networks in recent years has been dogged by a lack of standardized naming conventions, as various groups use overlapping and contradictory terminology to describe specific network configurations (e.g., multiplex, multilayer, multilevel, multidimensional, multirelational, interconnected). Formally, multidimensional networks are edge-labeled multigraphs. The term "fully multidimensional" has also been used to refer to a multipartite edge-labeled multigraph. Multidim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Book (trading)
An order book is the list of orders (manual or electronic) that a trading venue (in particular stock exchanges) uses to record the interest of buyers and sellers in a particular financial instrument. A matching engine uses the book to determine which orders can be fully or partially executed. Order book in securities trading In securities trading, an order book contains the list of buy orders and the list of sell orders. For each entry it must keep among others, some means of identifying the party (even if this identification is obscured, as in a dark pool), the number of securities and the price that the buyer or seller are bidding/asking for the particular security. Price levels When several orders contain the same price, they are referred as a price level, meaning that if, say, a bid comes at that price level, all the sell orders on that price level could potentially fulfill that. Crossed book When the order book is part of a matching engine, orders are matched as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agent-based Model
An agent-based model (ABM) is a computational model for simulating the actions and interactions of autonomous agents (both individual or collective entities such as organizations or groups) in order to understand the behavior of a system and what governs its outcomes. It combines elements of game theory, complex systems, emergence, computational sociology, multi-agent systems, and evolutionary programming. Monte Carlo methods are used to understand the stochasticity of these models. Particularly within ecology, ABMs are also called individual-based models (IBMs). A review of recent literature on individual-based models, agent-based models, and multiagent systems shows that ABMs are used in many scientific domains including biology, ecology and social science. Agent-based modeling is related to, but distinct from, the concept of multi-agent systems or multi-agent simulation in that the goal of ABM is to search for explanatory insight into the collective behavior of agents obeying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interbank Networks
An interbank network, also known as an ATM consortium or ATM network, is a computer network that enables ATM cards issued by a financial institution that is a member of the network to be used to perform ATM transactions through ATMs that belong to another member of the network. However, the functions which may be performed at the network ATM vary. For example, special services, such as the purchase of mobile phone airtime, may be available to own-bank but not to network ATM cardholders. Furthermore, the network ATM owner may charge a fee for use of network cards (in addition to any fees imposed by the own-bank). Interbank networks enable ATM cardholders to have access to ATMs of other banks that are members of the network when their own bank's ATM is unavailable. This is especially convenient for travelers traveling abroad, where multinational interbank networks, like Plus or Cirrus, are widely available. Interbank networks also permit, through different means, the use of AT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stock Correlation Networks
A stock correlation network is a type of financial network based on stock price correlation used for observing, analyzing and predicting the stock market dynamics. Background In the last decade, financial networks have attracted more attention from the research community. A study on company ownership based network showed a power law distribution with majority of companies controlled by small number of people. Another study focused on board of directors where the network was created between companies if represented by the same member on board. The board membership network thus created resulted in a power law with small number of board members representing large number of companies. Several studies have proposed network based models for studying the stock correlation network. Stock correlation network has proven its efficacy in predicting market movements. Chakrabortia and Onella showed that the average distance between the stocks can be a significant indicator of market dynamics. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Financial Crisis Of 2007–2008
Finance is the study and discipline of money, currency and capital assets. It is related to, but not synonymous with economics, the study of production, distribution, and consumption of money, assets, goods and services (the discipline of financial economics bridges the two). Finance activities take place in financial systems at various scopes, thus the field can be roughly divided into personal, corporate, and public finance. In a financial system, assets are bought, sold, or traded as financial instruments, such as currencies, loans, bonds, shares, stocks, options, futures, etc. Assets can also be banked, invested, and insured to maximize value and minimize loss. In practice, risks are always present in any financial action and entities. A broad range of subfields within finance exist due to its wide scope. Asset, money, risk and investment management aim to maximize value and minimize volatility. Financial analysis is viability, stability, and profitability a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
