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Market Game
In economic theory, a strategic market game, also known as a market game, is a game explaining price formation through game theory, typically implementing a general equilibrium outcome as a Nash equilibrium. Fundamentally in a strategic market game, markets work in a strategic way that does not (directly) involve price but can indirectly influence it. The key ingredients to modelling strategic market games are the definition of trading posts (or markets), and their price formation mechanisms as a function of the actions of players. A leading example is the Lloyd Shapley and Martin Shubik trading post game. Shapley-Shubik use a numeraire and trading posts for the exchange of goods. The relative price of each good in terms of the numeraire is determined as the ratio of the amount of the numeraire brought at each post, to the quantity of goods offered for sale at that post. In this way, every agent is allocated goods in proportion to his bids, so that posts always clear. Pradeep Dubey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Price Formation
Market microstructure is a branch of finance concerned with the details of how exchange occurs in market (economics), markets. While the theory of market microstructure applies to the exchange of real or financial assets, more evidence is available on the microstructure in the financial field due to the availability of transactions data from them. The major thrust of market microstructure research examines the ways in which the working processes of a market affect determinants of transaction costs, prices, quotes, volume, and trading behavior. In the twenty-first century, innovations have allowed an expansion into the study of the impact of market microstructure on the incidence of market abuse, such as insider trading, market manipulation and broker-client conflict. Definition Maureen O'Hara (professor), Maureen O'Hara defines market microstructure as "the study of the process and outcomes of exchanging assets under explicit trading rules. While much of economics abstracts from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Game Theory
Game theory is the study of mathematical models of strategic interactions. It has applications in many fields of social science, and is used extensively in economics, logic, systems science and computer science. Initially, game theory addressed two-person zero-sum games, in which a participant's gains or losses are exactly balanced by the losses and gains of the other participant. In the 1950s, it was extended to the study of non zero-sum games, and was eventually applied to a wide range of Human behavior, behavioral relations. It is now an umbrella term for the science of rational Decision-making, decision making in humans, animals, and computers. Modern game theory began with the idea of mixed-strategy equilibria in two-person zero-sum games and its proof by John von Neumann. Von Neumann's original proof used the Brouwer fixed-point theorem on continuous mappings into compact convex sets, which became a standard method in game theory and mathematical economics. His paper was f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Equilibrium
In economics, general equilibrium theory attempts to explain the behavior of supply, demand, and prices in a whole economy with several or many interacting markets, by seeking to prove that the interaction of demand and supply will result in an overall general equilibrium. General equilibrium theory contrasts with the theory of ''partial'' equilibrium, which analyzes a specific part of an economy while its other factors are held constant. General equilibrium theory both studies economies using the model of equilibrium pricing and seeks to determine in which circumstances the assumptions of general equilibrium will hold. The theory dates to the 1870s, particularly the work of French economist Léon Walras in his pioneering 1874 work ''Elements of Pure Economics''. The theory reached its modern form with the work of Lionel W. McKenzie (Walrasian theory), Kenneth Arrow and Gérard Debreu (Hicksian theory) in the 1950s. Overview Broadly speaking, general equilibrium tries to give a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nash Equilibrium
In game theory, the Nash equilibrium is the most commonly used solution concept for non-cooperative games. A Nash equilibrium is a situation where no player could gain by changing their own strategy (holding all other players' strategies fixed). The idea of Nash equilibrium dates back to the time of Cournot, who in 1838 applied it to his model of competition in an oligopoly. If each player has chosen a strategy an action plan based on what has happened so far in the game and no one can increase one's own expected payoff by changing one's strategy while the other players keep theirs unchanged, then the current set of strategy choices constitutes a Nash equilibrium. If two players Alice and Bob choose strategies A and B, (A, B) is a Nash equilibrium if Alice has no other strategy available that does better than A at maximizing her payoff in response to Bob choosing B, and Bob has no other strategy available that does better than B at maximizing his payoff in response to Alice c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lloyd Shapley
Lloyd Stowell Shapley (; June 2, 1923 – March 12, 2016) was an American mathematician and Nobel Memorial Prize-winning economist. He contributed to the fields of mathematical economics and especially game theory. Shapley is generally considered one of the most important contributors to the development of game theory since the work of von Neumann and Morgenstern. With Alvin E. Roth, Shapley won the 2012 Nobel Memorial Prize in Economic Sciences "for the theory of stable allocations and the practice of market design." Life and career Lloyd Shapley was born on June 2, 1923, in Cambridge, Massachusetts, one of the sons of astronomers Harlow Shapley and Martha Betz Shapley, both from Missouri. He attended Phillips Exeter Academy and was a student at Harvard when he was drafted in 1943. He served in the United States Army Air Corps in Chengdu, China and received the Bronze Star decoration for breaking the Soviet weather code. After the war, Shapley returned to Harvard and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Shubik
Martin Shubik (1926–2018) was an American mathematical economist who specialized in game theory, defense analysis, and the theory of money. The latter was his main research interest and he referred to it as his "white whale". He also coined the term "mathematical institutional economics" in 1959 to describe his scholarly approach to studying the economy. He spent the majority of his career at Yale University Yale University is a Private university, private Ivy League research university in New Haven, Connecticut, United States. Founded in 1701, Yale is the List of Colonial Colleges, third-oldest institution of higher education in the United Stat ..., where he was heavily involved with the Cowles Foundation for Research in Economics, and launched the virtuaMuseum of Money and Financial Institutions Outside of economics, he began studying inclusion body myositis (IBM) after a 2003 diagnosis. He provided seed money to the Yale School of Public Health for thIBM Disease Reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pradeep Dubey
Pradeep Dubey (born 9 January 1951) is an Indian game theorist. He is a Professor of Economics at the State University of New York, Stony Brook, and a member of the Stony Brook Center for Game Theory. He also holds a visiting position at Cowles Foundation, Yale University. He did his schooling at the St. Columba's School, Delhi. He received his Ph.D. in applied mathematics from Cornell University and B.Sc. (with honors in physics) from the University of Delhi. His research areas of interest are game theory and mathematical economics. He has published, among others, in ''Econometrica'', '' Games and Economic Behavior'', ''Journal of Economic Theory'', and ''Quarterly Journal of Economics''. He is a Fellow of '' The Econometric Society'', ACM Fellow and a member of the council of the ''Game Theory Society''. Academic positions From 1975 until 1978, Dubey was an assistant professor in the School of Organization and Management and Cowles Foundation for Research in Economics at Y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Geanakoplos
John Geanakoplos (born March 18, 1955) is an American economist, and the James Tobin Professor of Economics at Yale University. Background and education John Geanakoplos was born to a Greek-American family of scholars. His father was the late professor emeritus at Yale Deno Geanakoplos (), a Greek-American historian of Byzantine cultural and religious history, and his mother, Effie Geanakoplos, was an instructor in psychiatry at the Yale Child Study Center. In 1970 Geanakoplos won the United States Junior Open Chess Championship. He received his B.A. in mathematics from Yale University in 1975 (summa cum laude), and his M.A. in mathematics and his Ph.D. in economics under Kenneth Arrow and Jerry Green from Harvard University in 1980. In 1980 he became an assistant professor of economics at Yale University, rising to associate professor in 1983, full professor in 1986, and the James Tobin Professor of Economics in 1994. Professional career In 1996-2005 Geanakoplos was directo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Business Models
A business model describes how a Company, business organization creates, delivers, and captures value creation, value,''Business Model Generation'', Alexander Osterwalder, Yves Pigneur, Alan Smith, and 470 practitioners from 45 countries, self-published, 2010 in economic, social, cultural or other contexts. The model describes the specific way in which the business conducts itself, spends, and earns money in a way that generates Profit (economics), profit. The process of business model construction and modification is also called ''business model innovation'' and forms a part of business strategy. In theory and practice, the term ''business model'' is used for a broad range of informal and formal descriptions to represent core aspects of an organization or business, including Mission statement, purpose, business process, target market, target customers, offerings, strategies, infrastructure, organizational structures, profit structures, sourcing, trading practices, and operational ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
