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Walras's Law
Walras's law is a principle in general equilibrium theory asserting that budget constraints imply that the ''values'' of excess demand (or, conversely, excess market supplies) must sum to zero regardless of whether the prices are general equilibrium prices. That is: : \sum_^p_j \cdot (D_j - S_j) = 0, where p_j is the price of good ''j'' and D_j and S_j are the demand and supply respectively of good ''j''. Walras's law is named after the economist Léon Walras of the University of Lausanne who formulated the concept in his ''Elements of Pure Economics'' of 1874. Although the concept was expressed earlier but in a less mathematically rigorous fashion by John Stuart Mill in his ''Essays on Some Unsettled Questions of Political Economy'' (1844), Walras noted the mathematically equivalent proposition that when considering any particular market, if all other markets in an economy are in equilibrium, then that specific market must also be in equilibrium. The term "Walras's law" was co ... [...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] |
Marshallian Demand Function
In microeconomics, a consumer's Marshallian demand function (named after Alfred Marshall) is the quantity they demand of a particular good as a function of its price, their income, and the prices of other goods, a more technical exposition of the standard demand function. It is a solution to the utility maximization problem of how the consumer can maximize their utility for given income and prices. A synonymous term is uncompensated demand function, because when the price rises the consumer is not compensated with higher nominal income for the fall in their real income, unlike in the Hicksian demand function. Thus the change in quantity demanded is a combination of a substitution effect and a wealth effect. Although Marshallian demand is in the context of partial equilibrium theory, it is sometimes called Walrasian demand as used in general equilibrium theory (named after Léon Walras). According to the utility maximization problem, there are ''L'' commodities with price vector '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economics Laws
Economic law is a set of legal rules for regulating economic activity. In the legal system of the Soviet Union, economic law was the legal theory and system under which economic relations were a legal discipline independent of criminal law and civil law.Ferdinand Joseph Maria Feldbrugge, Gerard Pieter van den Berg, William B. Simons (1985) "Encyclopedia of Soviet Law", ''BRILL'', O. S. (Olimpiad Solomonovich) Ioffe, Mark W. Janis (1987) "Soviet Law and Economy", Martinus Nijhoff Publishers, In the Soviet legal system, the purpose of the economic law was to regulate the relations arising from the economic activities. The theory of the independence of the economic law was pursued after the 21st Congress of the CPSU of 1959, with the principal proponent being V.V. Laptev. After debate, this position was adopted by the decrees of the CPSU and the USSR Council of Ministers during 1970–1975 and finalized in the 1977 Soviet Constitution. See also *Constitutional economics *Law a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Equilibrium Theory
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] |
The New Palgrave Dictionary Of Economics
''The New Palgrave Dictionary of Economics'' (2018), 3rd ed., is a twenty-volume reference work on economics published by Palgrave Macmillan. It contains around 3,000 entries, including many classic essays from the original Inglis Palgrave Dictionary, and a significant increase in new entries from the previous editions by the most prominent economists in the field, among them 36 winners of the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel. Articles are classified according to ''Journal of Economic Literature'' (''JEL'') classification codes. ''The New Palgrave'' is also available in a hyperlinked online version. Online content is added to the 2018 edition, and a 4th edition under the editorship of J. Barkley Rosser Jr., Esteban Pérez Caldentey, and Matías Vernengo will be published in the future. The first edition was titled ''The New Palgrave: A Dictionary of Economics'' (1987), was and edited by John Eatwell, Murray Milgate, and Peter Newman, as a w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Dictionary Of Economics
A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes''. It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version can be written in two forms: the double-storey a and single-storey ɑ. The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type. In English grammar, " a", and its variant " an", are indefinite articles. History The earliest certain ancestor of "A" is aleph (also written 'aleph), the first letter of the Phoenician alphabet, which consisted entirely of consonants (for that reason, it is also called an abjad to distinguish it fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don Patinkin
Don Patinkin (Hebrew: דן פטינקין) (January 8, 1922 – August 7, 1995) was an American-born Israeli monetary economist, and the President of the Hebrew University of Jerusalem.Nissan Liviatan, 2008. "Patinkin, Don (1922–1995)," ''The New Palgrave Dictionary of Economics'', 2nd EditionAbstract./ref> Biography Don Patinkin was born January 8, 1922, in Chicago, to a family of Jewish emigrants from Poland. While doing his undergraduate studies at the University of Chicago, he also studied the Talmud at the Hebrew Theological College in Chicago. He continued at Chicago for his graduate studies, earning a Ph.D. in 1947 under the supervision of Oskar R. Lange. Patinkin was a strong Zionist and, while doing his graduate studies, planned to immigrate to Palestine; in his graduate research he studied Palestinian economics, although he did not complete his thesis in this subject. After graduating he held lecturer positions at the University of Chicago and the University of Illi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walrasian Auction
A Walrasian auction, introduced by Léon Walras, is a type of simultaneous auction where each agent calculates its demand for the good at every possible price and submits this to an auctioneer. The price is then set so that the total demand across all agents equals the total amount of the good. Thus, a Walrasian auction perfectly matches the supply and the demand. Walras suggested that equilibrium would always be achieved through a process of tâtonnement (French for "trial and error"), a form of hill climbing. More recently, however, the Sonnenschein–Mantel–Debreu theorem proved that such a process would not necessarily reach a unique and stable equilibrium, even if the market is populated with perfectly rational agents. Walrasian auctioneer The ''Walrasian auctioneer'' is the presumed auctioneer that matches supply and demand in a market of perfect competition. The auctioneer provides for the features of perfect competition: perfect information and no transaction costs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquidity Trap
A liquidity trap is a situation, described in Keynesian economics, in which, "after the rate of interest has fallen to a certain level, liquidity preference may become virtually absolute in the sense that almost everyone prefers holding cash rather than holding a debt ( financial instrument) which yields so low a rate of interest." Keynes, John Maynard (1936) ''The General Theory of Employment, Interest and Money'', United Kingdom: Palgrave Macmillan, 2007 edition, A liquidity trap is caused when people hoard cash because they expect an adverse event such as deflation, insufficient aggregate demand, or war. Among the characteristics of a liquidity trap are interest rates that are close to zero and changes in the money supply that fail to translate into changes in the price level. Krugman, Paul R. (1998)"It's baack: Japan's Slump and the Return of the Liquidity Trap," Brookings Papers on Economic Activity Origin and definition of the term John Maynard Keynes, in his 1936 ''Gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Involuntary Unemployment
Involuntary unemployment occurs when a person is unemployed despite being willing to work at the prevailing wage. It is distinguished from voluntary unemployment, where a person refuses to work because their reservation wage is higher than the prevailing wage. In an economy with involuntary unemployment, there is a surplus of labor at the current real wage. This occurs when there is some force that prevents the real wage rate from decreasing to the real wage rate that would equilibrate supply and demand (such as a minimum wage above the market-clearing wage). Structural unemployment is also involuntary. Economists have several theories explaining the possibility of involuntary unemployment including implicit contract theory, disequilibrium theory, staggered wage setting, and efficiency wages. The officially measured unemployment rate is the ratio of involuntary unemployment to the sum of involuntary unemployment and employment (the denominator of this ratio being the total labor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keynesian Economics
Keynesian economics ( ; sometimes Keynesianism, named after British economist John Maynard Keynes) are the various macroeconomic theories and models of how aggregate demand (total spending in the economy) strongly influences economic output and inflation. In the Keynesian view, aggregate demand does not necessarily equal the productive capacity of the economy. Instead, it is influenced by a host of factors – sometimes behaving erratically – affecting production, employment, and inflation. Keynesian economists generally argue that aggregate demand is volatile and unstable and that, consequently, a market economy often experiences inefficient macroeconomic outcomes – a recession, when demand is low, or inflation, when demand is high. Further, they argue that these economic fluctuations can be mitigated by economic policy responses coordinated between government and central bank. In particular, fiscal policy actions (taken by the government) and monetary policy actions (t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neoclassical Economics
Neoclassical economics is an approach to economics in which the production, consumption and valuation (pricing) of goods and services are observed as driven by the supply and demand model. According to this line of thought, the value of a good or service is determined through a hypothetical maximization of utility by income-constrained individuals and of profits by firms facing production costs and employing available information and factors of production. This approach has often been justified by appealing to rational choice theory, a theory that has come under considerable question in recent years. Neoclassical economics historically dominated macroeconomics and, together with Keynesian economics, formed the neoclassical synthesis which dominated mainstream economics as "neo-Keynesian economics" from the 1950s to the 1970s.Clark, B. (1998). ''Principles of political economy: A comparative approach''. Westport, Connecticut: Praeger. Nadeau, R. L. (2003). ''The Wealth of Na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
