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Radner Equilibrium
Radner equilibrium is an economic concept defined by economist Roy Radner in the context of 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 ov .... The concept is an extension of the Arrow–Debreu equilibrium and the base for the first consistent incomplete markets framework. The concept departs from the Arrow-Debreu framework in two ways: # Uncertainty is explicitly modeled through a tree structure (or equivalent filtration) rendering passage of time and resolution of uncertainty explicit. # Budget feasibility is no longer defined as affordability but through explicit trading of financial instruments. Financial instruments are used to allow insurance and inter-temporal wealth transfers across spot markets at each nodes of the tree. Economic agents face a sequen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economist
An economist is a professional and practitioner in the social sciences, social science discipline of economics. The individual may also study, develop, and apply theories and concepts from economics and write about economic policy. Within this field there are many sub-fields, ranging from the broad philosophy, philosophical theory, theories to the focused study of minutiae within specific Market (economics), markets, macroeconomics, macroeconomic analysis, microeconomics, microeconomic analysis or financial statement analysis, involving analytical methods and tools such as econometrics, statistics, Computational economics, economics computational models, financial economics, mathematical finance and mathematical economics. Professions Economists work in many fields including academia, government and in the private sector, where they may also "study data and statistics in order to spot trends in economic activity, economic confidence levels, and consumer attitudes. They assess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roy Radner
Roy Radner (June 29, 1927 - October 6, 2022) was Leonard N. Stern School Professor of Business at New York University. He was a micro-economic theorist. Radner's research interests included strategic analysis of climate change, bounded rationality, game-theoretic models of corruption, pricing of information goods and statistical theory of data mining. Previously he was a faculty member at the University of California, Berkeley, and a Distinguished Member of Technical Staff at AT&T Bell Laboratories. Life and Career Roy Radner received his Ph.B. in the Liberal Arts from the University of Chicago in 1945. Continuing his education at the University of Chicago, Radner went on to receive a B.S. in Mathematics in 1950, an M.S. in Mathematics in 1951, and his Ph.D. in Mathematical Statistics in 1956. He died on October 6, 2022 at Pennswood Village in Newtown, Bucks County, Pennsylvania, aged 95. Radner equilibrium Among Radner's various contributions, the one that bears his na ... [...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 to the theory of ''partial'' equilibrium, which analyzes a specific part of an economy while its other factors are held constant. In general equilibrium, constant influences are considered to be noneconomic, therefore, resulting beyond the natural scope of economic analysis. The noneconomic influences is possible to be non-constant when the economic variables change, and the prediction accuracy may depend on the independence of the economic factors. 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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incomplete Markets
In economics, incomplete markets are markets in which there does not exist an Arrow–Debreu security for every possible state of nature. In contrast with complete markets, this shortage of securities will likely restrict individuals from transferring the desired level of wealth among states. An Arrow security purchased or sold at date ''t'' is a contract promising to deliver one unit of income in one of the possible contingencies which can occur at date ''t'' + 1. If at each date-event there exists a complete set of such contracts, one for each contingency that can occur at the following date, individuals will trade these contracts in order to insure against future risks, targeting a desirable and budget feasible level of consumption in each state (i.e. consumption smoothing). In most set ups when these contracts are not available, optimal risk sharing between agents will not be possible. For this scenario, agents (homeowners, workers, firms, investors, etc.) will lack the instru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
