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Goodwin Model
The Goodwin model, sometimes called Goodwin's class struggle model, is a model of endogenous economic fluctuations first proposed by the American economist Richard M. Goodwin in 1967. It combines aspects of the Harrod–Domar growth model with the Phillips curve to generate endogenous cycles in economic activity (output, unemployment and wages) unlike most modern macroeconomic models in which movements in economic aggregates are driven by exogenously assumed shocks. Since Goodwin's publication in 1967, the model has been extended and applied in various ways. Model The model is derived from the following assumptions: # there is steady growth of labour productivity (e.g. by technological improvement); # there is steady growth of the labour force (e.g. by births); # there are only two factors of production: labour and capital; # workers completely consume their wages, and capitalists completely invest their profits; # the capital-output ratio is constant (i.e. a fixed amount of ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard M
Richard is a male given name. It originates, via Old French, from Old Frankish and is a compound of the words descending from Proto-Germanic ''*rīk-'' 'ruler, leader, king' and ''*hardu-'' 'strong, brave, hardy', and it therefore means 'strong in rule'. Nicknames include "Richie", " Dick", "Dickon", " Dickie", "Rich", "Rick", "Rico", "Ricky", and more. Richard is a common English, German and French male name. It's also used in many more languages, particularly Germanic, such as Norwegian, Danish, Swedish, Icelandic, and Dutch, as well as other languages including Irish, Scottish, Welsh and Finnish. Richard is cognate with variants of the name in other European languages, such as the Swedish "Rickard", the Catalan "Ricard" and the Italian "Riccardo", among others (see comprehensive variant list below). People named Richard Multiple people with the same name * Richard Andersen (other) * Richard Anderson (other) * Richard Cartwright (other) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phillips Curve
The Phillips curve is an economic model, named after William Phillips hypothesizing a correlation between reduction in unemployment and increased rates of wage rises within an economy. While Phillips himself did not state a linked relationship between employment and inflation, this was a trivial deduction from his statistical findings. Paul Samuelson and Robert Solow made the connection explicit and subsequently Milton Friedman and Edmund Phelps put the theoretical structure in place. While there is a short run tradeoff between unemployment and inflation, it has not been observed in the long run.Chang, R. (1997"Is Low Unemployment Inflationary?" ''Federal Reserve Bank of Atlanta Economic Review'' 1Q97:4-13 In 1967 and 1968, Friedman and Phelps asserted that the Phillips curve was only applicable in the short-run and that, in the long-run, inflationary policies would not decrease unemployment. Friedman then correctly predicted that in the 1973–75 recession, both inflation an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wage Share
In economics, the wage share or labor share is the part of national income, or the income of a particular economic sector, allocated to wages (labor). It is related to the capital or profit share, the part of income going to capital, which is also known as the K– Y ratio. The labor share is a key indicator for the distribution of income. The wage share is countercyclical; that is, it tends to fall when output increases and rise when output decreases. Despite fluctuating over the business cycle, the wage share was once thought to be stable, which Keynes described as "one of the most surprising, yet best-established facts in the whole range of economic statistics". However, the wage share has declined in most developed countries since the 1980s. Definition The wage share can be defined in various ways, but empirically it is usually defined as total labor compensation or labor costs over nominal GDP or gross value added. Often the capital share and labor share are assumed to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Market Tightness
Market tightness is a measure of the liquidity of a market. High market tightness indicates relatively low liquidity and high transaction costs, whereas low market tightness indicates high liquidity and low transaction costs. For example, during the dotcom bubble, information technology companies were very difficult and expensive to buy a part of, through stock, loan, or other methods, due to the tightness of competition in the market. Equity markets In equity markets, market tightness is measured using percentage relative spread. Housing markets In housing markets, measures of market tightness include the probability of achieving a sale and house price appreciation. Tighter housing markets result in greater seller bargaining power and higher sale prices. Labour markets Labour market tightness is measured as the ratio of job vacancies per unemployed Unemployment, according to the OECD (Organisation for Economic Co-operation and Development), is people above a specified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotka–Volterra Equations
The Lotka–Volterra equations, also known as the predator–prey equations, are a pair of first-order nonlinear differential equations, frequently used to describe the dynamics of biological systems in which two species interact, one as a predator and the other as prey. The populations change through time according to the pair of equations: \begin \frac &= \alpha x - \beta x y, \\ \frac &= \delta x y - \gamma y, \end where * is the number of prey (for example, rabbits); * is the number of some predator (for example, foxes); *\tfrac and \tfrac represent the instantaneous growth rates of the two populations; * represents time; *, , , are positive real parameters describing the interaction of the two species. The Lotka–Volterra system of equations is an example of a Kolmogorov model, which is a more general framework that can model the dynamics of ecological systems with predator–prey interactions, competition, disease, and mutualism. History The Lotka–Volterra predat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phase Space
In dynamical system theory, a phase space is a space in which all possible states of a system are represented, with each possible state corresponding to one unique point in the phase space. For mechanical systems, the phase space usually consists of all possible values of position and momentum variables. It is the outer product of direct space and reciprocal space. The concept of phase space was developed in the late 19th century by Ludwig Boltzmann, Henri Poincaré, and Josiah Willard Gibbs. Introduction In a phase space, every degree of freedom or parameter of the system is represented as an axis of a multidimensional space; a one-dimensional system is called a phase line, while a two-dimensional system is called a phase plane. For every possible state of the system or allowed combination of values of the system's parameters, a point is included in the multidimensional space. The system's evolving state over time traces a path (a phase-space trajectory for the system) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goodwin2
Goodwin may refer to: Names * Goodwin (surname), people with the surname * Goody Rosen (born Goodwin Rosen; 1912–1994), Canadian Major League Baseball All Star outfielder * Goodwin Liu (born 1970), American lawyer and politician * Goodwin Knight (1896–1970), American politician, 31st Governor of California * Goodwin Tutum Anim, Ghanaian journalist Places * Goodwin, Alberta, a locality in Canada * Goodwin Island, Nunavut, Canada * Goodwin's (Station), now Brookhaven, Georgia, United States * Goodwin, Nebraska, United States * Goodwin Sands, a sandbank in the English Channel * Goodwin, South Dakota, United States * Goodwin, West Virginia, United States * Lake Goodwin, Washington, United States * Goodwins, the original name of the Yorkshire Trading Company, United Kingdom Other uses * FL Goodwin, an American manufacturer of powered parachute aircraft * Goodwin & Company, a tobacco manufacturer * Goodwin College, East Hartford, Connecticut * Goodwin Field, a stadium in Fullerto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Employment Rate
The Organisation for Economic Co-operation and Development defines the employment rate as the employment-to-population ratio. This is a statistical ratio that measures the proportion of a country's working age population (statistics are often given for ages 15 to 64) that is employed. This includes people that have stopped looking for work.Employment/Population Ratios for the 50 Largest Metropolitan Statistical Areas: 2008, 2009, and 2010. (2011, September). Retrieved December 10, 2012, from United States Census Bureau website: https://www.census.gov/prod/2011pubs/ acsbr10-09.pdf The International Labour Organization states that a person is considered employed if they have worked at least 1 hour in "gainful" employment in the most recent week. The employment-to-population ratio is usually calculated and reported periodically for the economy by the national agency of statistics. It is usually calculated by using a survey data collection and the answers of certa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Business Cycle
Business cycles are intervals of Economic expansion, expansion followed by recession in economic activity. These changes have implications for the welfare of the broad population as well as for private institutions. Typically business cycles are measured by examining trends in a broad economic indicator such as Real Gross Domestic Production. Business cycle fluctuations are usually characterized by general upswings and downturns in a span of macroeconomic variables. The individual episodes of expansion/recession occur with changing duration and intensity over time. Typically their periodicity has a wide range from around 2 to 10 years (the technical phrase "stochastic cycle" is often used in statistics to describe this kind of process.) As in [Harvey, Trimbur, and van Dijk, 2007, ''Journal of Econometrics''], such flexible knowledge about the frequency of business cycles can actually be included in their mathematical study, using a Bayesian statistical paradigm. There are numer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harrod–Domar Model
The Harrod–Domar model is a Keynesian model of economic growth. It is used in development economics to explain an economy's growth rate in terms of the level of saving and of capital. It suggests that there is no natural reason for an economy to have balanced growth. The model was developed independently by Roy F. Harrod in 1939, and Evsey Domar in 1946, although a similar model had been proposed by Gustav Cassel in 1924. The Harrod–Domar model was the precursor to the exogenous growth model. Neoclassical economists claimed shortcomings in the Harrod–Domar model—in particular the instability of its solution—and, by the late 1950s, started an academic dialogue that led to the development of the Solow–Swan model. According to the Harrod–Domar model there are three kinds of growth: warranted growth, actual growth and natural rate of growth. Warranted growth rate is the rate of growth at which the economy does not expand indefinitely or go into recession. Actual growth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
