|
Consumption Function
In economics, the consumption function describes a relationship between consumption and disposable income. The concept is believed to have been introduced into macroeconomics by John Maynard Keynes in 1936, who used it to develop the notion of a government spending multiplier. Details Its simplest form is the ''linear consumption function'' used frequently in simple Keynesian models: :C = a + b \cdot Y_ where a is the autonomous consumption that is independent of disposable income; in other words, consumption when disposable income is zero. The term b \cdot Y_ is the induced consumption that is influenced by the economy's income level Y_. The parameter b is known as the marginal propensity to consume, i.e. the increase in consumption due to an incremental increase in disposable income, since \partial C / \partial Y_ = b. Geometrically, b is the slope of the consumption function. Keynes proposed this model to fit three stylized facts: * People typically spend a part, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stylized Fact
In social sciences, especially economics, a stylized fact is a simplified presentation of an empirical finding. Stylized facts are broad tendencies that aim to summarize the data, offering essential truths while ignoring individual details. Stylized facts offer strong generalizations that are generally true for entire populations, even when the generalization may not be true for individual observations. A prominent example of a stylized fact is: "Education significantly raises lifetime income." Another stylized fact in economics is: "In advanced economies, real GDP growth fluctuates in a recurrent but irregular fashion". However, scrutiny to detail will often produce counterexamples. In the case given above, holding a PhD may ''lower'' lifetime income, because of the years of lost earnings it implies and because many PhD holders enter academia instead of higher-paid fields. Nonetheless, broadly speaking, people with more education tend to earn more, so the above example is true in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Measures Of National Income And Output
A variety of measures of national income and output are used in economics to estimate total economic activity in a country or region, including gross domestic product (GDP), Gross national income (GNI), net national income (NNI), and adjusted national income (NNI adjusted for natural resource depletion – also called as NNI at factor cost). All are specially concerned with counting the total amount of goods and services produced within the economy and by various sectors. The boundary is usually defined by geography or citizenship, and it is also defined as the total income of the nation and also restrict the goods and services that are counted. For instance, some measures count only goods & services that are exchanged for money, excluding bartered goods, while other measures may attempt to include bartered goods by ''imputing'' monetary values to them. National accounts Arriving at a figure for the total production of goods and services in a large region like a country entails a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Life Cycle Hypothesis
In economics, the life-cycle hypothesis (LCH) is a model that strives to explain the consumption patterns of individuals. Theory and evidence Elderly dissaving is also influenced by the present factors that materially prevent them from the possibility of spending their previous savings. One of them is the loss of the driving license. An extended survey held in 1998, 2000, and 2002 among the U.S. retired citizens highlighted that "about 90% of the trips among people older than age 65 are in a private vehicle" and that driving cessation was highly correlated (46% to 63%, Tobit regression) to a reduction in spending on non basic needs such as trips, tickets, and dinings out. It is also relevant to distinguish elderly poor people in two basic tipologies: people who are poor on income, or those who are poor in terms of both income and consumption. While the life cycle hypothesis predicts the income and the consumption patterns of the elderly population, a series of research papers pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Absolute Income Hypothesis
In economics, the absolute income hypothesis concerns how a consumer divides their disposable income between consumption and saving. It is part of the theory of consumption proposed by economist John Maynard Keynes. The hypothesis was subject to further research in the 1960s and 70s, most notably by American economist James Tobin (1918–2002)."", wisdomsupreme.com. Retrieved 2019-03-01 Background Keynes' ''General Theory'' in 1936 identified the relationship between income and consumption as a key macroeconomic relationship. Keynes asserted that real consumption (i.e. adjusted for inflation) is a function of real disposable income, which is total income net of taxes. As income rises, the theory asserts that consumption will also rise, but not necessarily at the same rate. When applied to a cross section of a population, rich people are expected to consume a lower proportion of their income than poor people. The marginal propensity to consume is present in Keynes' consumpti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregate Demand
In economics, aggregate demand (AD) or domestic final demand (DFD) is the total demand for final goods and services in an economy at a given time. It is often called effective demand, though at other times this term is distinguished. This is the demand for the gross domestic product of a country. It specifies the amount of goods and services that will be purchased at all possible price levels. Consumer spending, investment, corporate and government expenditure, and net exports make up the aggregate demand. The aggregate demand curve is plotted with real output on the horizontal axis and the price level on the vertical axis. While it is theorized to be downward sloping, the Sonnenschein–Mantel–Debreu results show that the slope of the curve cannot be mathematically derived from assumptions about individual rational behavior. Instead, the downward sloping aggregate demand curve is derived with the help of three macroeconomic assumptions about the functioning of markets: Pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permanent Income Hypothesis
The permanent income hypothesis (PIH) is a model in the field of economics to explain the consumption function, formation of consumption patterns. It suggests consumption patterns are formed from future expectations and consumption smoothing. The theory was developed by Milton Friedman and published in his ''A Theory of the Consumption Function'', published in 1957 and subsequently formalized by Robert Hall (economist), Robert Hall in a rational expectations model. Originally applied to Consumption (economics), consumption and income, the process of future expectations is thought to influence other phenomena. In its simplest form, the hypothesis states changes in permanent income (human capital, property, assets), rather than changes in temporary income (unexpected income), are what drive changes in consumption. The formation of consumption patterns opposite to predictions was an outstanding problem faced by the Neoclassical synthesis, Keynesian orthodoxy. Friedman's predictions o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milton Friedman
Milton Friedman (; July 31, 1912 – November 16, 2006) was an American economist and statistician who received the 1976 Nobel Memorial Prize in Economic Sciences for his research on consumption analysis, monetary history and theory and the complexity of stabilization policy. With George Stigler, Friedman was among the intellectual leaders of the Chicago school of economics, a neoclassical school of economic thought associated with the faculty at the University of Chicago that rejected Keynesianism in favor of monetarism before shifting their focus to new classical macroeconomics in the mid-1970s. Several students, young professors and academics who were recruited or mentored by Friedman at Chicago went on to become leading economists, including Gary Becker, Robert Fogel, and Robert Lucas Jr. Friedman's challenges to what he called "naive Keynesian theory" began with his interpretation of consumption, which tracks how consumers spend. He introduced a theory w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Life-cycle Hypothesis
In economics, the life-cycle hypothesis (LCH) is a model that strives to explain the consumption patterns of individuals. Theory and evidence Elderly dissaving is also influenced by the present factors that materially prevent them from the possibility of spending their previous savings. One of them is the loss of the driving license. An extended survey held in 1998, 2000, and 2002 among the U.S. retired citizens highlighted that "about 90% of the trips among people older than age 65 are in a private vehicle" and that driving cessation was highly correlated (46% to 63%, Tobit regression) to a reduction in spending on non basic needs such as trips, tickets, and dinings out. It is also relevant to distinguish elderly poor people in two basic tipologies: people who are poor on income, or those who are poor in terms of both income and consumption. While the life cycle hypothesis predicts the income and the consumption patterns of the elderly population, a series of research papers pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franco Modigliani
Franco Modigliani (; ; 18 June 1918 – 25 September 2003) was an Italian-American economist and the recipient of the 1985 Nobel Memorial Prize in Economics. He was a professor at University of Illinois at Urbana–Champaign, Carnegie Mellon University, and MIT Sloan School of Management. Early life and education Modigliani was born on 18 June 1918 in Rome to the Jewish family of a pediatrician father and a voluntary social worker mother."Franco Modigliani" by Daniel B. Klein and Ryan Daza, inThe Ideological Migration of the Economics Laureates, '' Econ Journal Watch'', 10(3), September 2013, pp. 472–293 He entered university at the age of seventeen, enrolling in the faculty of Law at the Sapienza University of Rome.Parisi, Daniela (2005) "Five Italian Articles Written by the Young Franco Modigliani (1937–1938)", ''Rivista Internazional di Scienze Sociali'', 113(4), pp. 555–557 (in language) In his second year at Sapienza, his submission to a nationwide contest in econo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Duesenberry
James Stemble Duesenberry (July 18, 1918 – October 5, 2009) was an American economist. He made a significant contribution to the Keynesian analysis of income and employment with his 1949 doctoral thesis ''Income, Saving and the Theory of Consumer Behavior''. In ''Income, Saving and the Theory of Consumer Behavior'', Duesenberry questioned basic economic assumptions about consumer behavior. He argued that consumer theory failed to take into account the importance of habit formation in establishing spending patterns. He also stressed the importance of social environment in determining an individual's level of expenditures. He proposed a mechanism called the "demonstration effect" by which people would modify their consumption patterns not because of changes in income or prices but from witnessing the consumption expenditures of others with whom they came into contact. That phenomenon, he argued, was driven by the interdependence of people's preferences and the need to maintain or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microfoundations
Microfoundations are an effort to understand macroeconomic phenomena in terms of individual agents' economic behavior and interactions.Maarten Janssen (2008),Microfoundations, in ''The New Palgrave Dictionary of Economics'', 2nd ed. Research in microfoundations explores the link between Macroeconomics, macroeconomic and Microeconomics, microeconomic principles in order to explore the aggregate relationships in macroeconomic models. During recent decades, macroeconomists have attempted to combine microeconomic models of individual behaviour to derive the relationships between macroeconomic variables. Presently, many macroeconomic models, representing different theories, are Dynamic stochastic general equilibrium, derived by aggregating microeconomic models, allowing economists to test them with both macroeconomic and microeconomic data. However, microfoundations research is still heavily debated with management, strategy and organization scholars having varying views on the "micro-m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
