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: 230 The state legislators agreed. No such law was passed until 1924, apparently assisted by the fading recollection of such mixed familial histories. | https://en.wikipedia.org/wiki/One-drop_rule |
In the 21st century, such interracial family histories are being revealed as individuals undergo DNA genetic analysis. The Melungeons are a group of multiracial families of mostly European and African ancestry whose ancestors were free in colonial Virginia. They migrated to the frontier in Kentucky and Tennessee. | https://en.wikipedia.org/wiki/One-drop_rule |
Their descendants have been documented over the decades as having tended to marry persons classified as "white". Their descendants became assimilated into the majority culture from the 19th to the 20th centuries. Pursuant to Reconstruction later in the 19th century, southern states acted to impose racial segregation by... | https://en.wikipedia.org/wiki/One-drop_rule |
From 1890 to 1908, all of the former Confederate states passed such laws, and most preserved disfranchisement until after passage of federal civil rights laws in the 1960s. At the South Carolina constitutional convention in 1895, an anti-miscegenation law and changes that would disfranchise blacks were proposed. Delega... | https://en.wikipedia.org/wiki/One-drop_rule |
George D. Tillman said the following in opposition: If the law is made as it now stands respectable families in Aiken, Barnwell, Colleton, and Orangeburg will be denied the right to intermarry among people with whom they are now associated and identified. At least one hundred families would be affected to my knowledge.... | https://en.wikipedia.org/wiki/One-drop_rule |
Those men served creditably, and it would be unjust and disgraceful to embarrass them in this way. It is a scientific fact that there is not one full-blooded Caucasian on the floor of this convention. Every member has in him a certain mixture of ... colored blood. | https://en.wikipedia.org/wiki/One-drop_rule |
The pure-blooded white has needed and received a certain infusion of darker blood to give him readiness and purpose. It would be a cruel injustice and the source of endless litigation, of scandal, horror, feud, and bloodshed to undertake to annul or forbid marriage for a remote, perhaps obsolete trace of Negro blood. T... | https://en.wikipedia.org/wiki/One-drop_rule |
Any man who is half a man would be ready to blow up half the world with dynamite to prevent or avenge attacks upon the honor of his mother in the legitimacy or purity of the blood of his father. In 1865, Florida passed an act that both outlawed miscegenation and defined the amount of black ancestry needed to be legally... | https://en.wikipedia.org/wiki/One-drop_rule |
(This was the equivalent of one great-grandparent.) Additionally, the act outlawed fornication, as well as the intermarrying of white females with men of color. However, the act permitted the continuation of marriages between white persons and persons of color that were established before the law was enacted.The one-dr... | https://en.wikipedia.org/wiki/One-drop_rule |
This was decades after the Civil War, emancipation, and the Reconstruction era. It followed restoration of white supremacy in the South and the passage of Jim Crow racial segregation laws. In the 20th century, it was also associated with the rise of eugenics and ideas of racial purity. | https://en.wikipedia.org/wiki/One-drop_rule |
From the late 1870s on, white Democrats regained political power in the former Confederate states and passed racial segregation laws controlling public facilities, and laws and constitutions from 1890 to 1910 to achieve disfranchisement of most blacks. Many poor whites were also disfranchised in these years, by changes... | https://en.wikipedia.org/wiki/One-drop_rule |
White Democratic-dominated legislatures proceeded with passing Jim Crow laws that instituted racial segregation in public places and accommodations, and passed other restrictive voting legislation. In Plessy v. Ferguson, the Supreme Court allowed racial segregation of public facilities, under the "separate but equal" d... | https://en.wikipedia.org/wiki/One-drop_rule |
Among them were hypodescent laws, defining as black anyone with any black ancestry, or with a very small portion of black ancestry. Tennessee adopted such a "one-drop" statute in 1910, and Louisiana soon followed. Then Texas and Arkansas in 1911, Mississippi in 1917, North Carolina in 1923, Alabama and Georgia in 1927,... | https://en.wikipedia.org/wiki/One-drop_rule |
During this same period, Florida, Indiana, Kentucky, Maryland, Missouri, Nebraska, North Dakota, and Utah retained their old "blood fraction" statutes de jure, but amended these fractions (one-sixteenth, one-thirty-second) to be equivalent to one-drop de facto.Before 1930, individuals of visible mixed European and Afri... | https://en.wikipedia.org/wiki/One-drop_rule |
Documentation of the long social recognition of mixed-race people was lost, and they were classified only as black or white. The binary world of the one-drop rule disregarded the self-identification both of people of mostly European ancestry who grew up in white communities, and of people who were of mixed race and ide... | https://en.wikipedia.org/wiki/One-drop_rule |
Over the centuries, many Indian tribes in Virginia had absorbed people of other ethnicities through marriage or adoption, but maintained their cultures. Suspecting blacks of trying to "pass" as Indians, Plecker ordered records changed to classify people only as black or white, and ordered offices to reclassify certain ... | https://en.wikipedia.org/wiki/One-drop_rule |
They have had difficulty because decades of birth, marriage, and death records were misclassified under Plecker's application of the law. No one was classified as Indian, although many individuals and families identified that way and were preserving their cultures. In the case of mixed-race American Indian and European... | https://en.wikipedia.org/wiki/One-drop_rule |
This was due to what was known as the "Pocahontas exception". Since many influential First Families of Virginia (FFV) claimed descent from the American Indian Pocahontas and her husband John Rolfe of the colonial era, the Virginia General Assembly declared that an individual could be considered white if having no more ... | https://en.wikipedia.org/wiki/One-drop_rule |
Through the 1940s, Walter Plecker of Virginia and Naomi Drake of Louisiana had an outsized influence. As the Registrar of Statistics, Plecker insisted on labeling mixed-race families of European-African ancestry as black. In 1924, Plecker wrote, "Two races as materially divergent as the White and Negro, in morals, ment... | https://en.wikipedia.org/wiki/One-drop_rule |
He also classified people as black who had formerly self-identified as Indian. When the United States Supreme Court struck down Virginia's law prohibiting inter-racial marriage in Loving v. Virginia (1967), it also declared Plecker's Virginia Racial Integrity Act and the one-drop rule unconstitutional. Many people in t... | https://en.wikipedia.org/wiki/One-drop_rule |
Among the colonial slave societies, the United States was nearly unique in developing the one-drop rule; it derived both from the Southern slave culture (shared by other societies) and the aftermath of the American Civil War, emancipation of slaves, and Reconstruction. In the late 19th century, Southern whites regained... | https://en.wikipedia.org/wiki/One-drop_rule |
Native-born Spanish women were always a minority. The colonists developed an elaborate classification and caste system that identified the mixed-race descendants of blacks, Amerindians, and whites by different names, related to appearance and known ancestry. | https://en.wikipedia.org/wiki/One-drop_rule |
Racial caste not only depended on ancestry or skin color, but also could be raised or lowered by the person's financial status or class. The same racial culture shock has come to hundreds of thousands of dark-skinned immigrants to the United States from Brazil, Colombia, Panama, and other Latin American nations. Althou... | https://en.wikipedia.org/wiki/One-drop_rule |
According to The Washington Post, their refusal to accept the United States' definition of black has left many feeling attacked from all directions. At times, white and black Americans might discriminate against them for their lighter or darker skin tones; African Americans might believe that Afro-Latino immigrants are... | https://en.wikipedia.org/wiki/One-drop_rule |
A majority of Latin Americans possess some African or American Indian ancestry. Many of these immigrants feel it is difficult enough to accept a new language and culture without the additional burden of having to transform from white to black. Yvette Modestin, a dark-skinned native of Panama who worked in Boston, said ... | https://en.wikipedia.org/wiki/One-drop_rule |
People in many other countries have tended to treat race less rigidly, both in their self-identification and how they regard others. Just as a person with physically recognizable African ancestry can claim to be black in the United States, someone with recognizable European ancestry may be considered white in Brazil, e... | https://en.wikipedia.org/wiki/One-drop_rule |
That might not seem so odd, Brazilians say, when you consider that the fair-complexioned actresses Rashida Jones of the television show "Boston Public" and Lena Horne are identified as black in the United States. According to Jose Neinstein, a native white Brazilian and executive director of the Brazilian-American Cult... | https://en.wikipedia.org/wiki/One-drop_rule |
Neinstein recalls talking with a man of Poitier's complexion when in Brazil: "We were discussing ethnicity, and I asked him, 'What do you think about this from your perspective as a black man?' He turned his head to me and said, 'I'm not black,' ... It simply paralyzed me. I couldn't ask another question." | https://en.wikipedia.org/wiki/One-drop_rule |
During the Spanish colonial period, Puerto Rico had laws such as the Regla del Sacar or Gracias al Sacar, by which a person of black ancestry could be considered legally white so long as the individual could prove that at least one person per generation in the last four generations had also been legally white. Thus per... | https://en.wikipedia.org/wiki/One-drop_rule |
Given the intense interest in ethnicity, genetic genealogists and other scientists have studied population groups. Henry Louis Gates Jr. publicized such genetic studies on his two series African American Lives, shown on PBS, in which the ancestry of prominent figures was explored. His experts discussed the results of a... | https://en.wikipedia.org/wiki/One-drop_rule |
Autosomal tests focus on SNPs.The specialists on Gates' program summarized the make-up of the United States population by the following: 58 percent of African Americans have at least 12.5% European ancestry (equivalent of one great-grandparent); 19.6 percent of African Americans have at least 25% European ancestry (equ... | https://en.wikipedia.org/wiki/One-drop_rule |
Among those who identified as black: The average proportion of white ancestry was 18%, the equivalent of having 22 white ancestors among their 128 5×great-grandparents. About 10% have more than 50% white ancestry.Black people in the United States are more racially mixed than white people, reflecting historical experien... | https://en.wikipedia.org/wiki/One-drop_rule |
80 percent of the free African-American families in the Upper South in the censuses of 1790 to 1810 can be traced as descendants of unions between white women and African men in colonial Virginia, not of slave women and white men. In the early colony, conditions were loose among the working class, who lived and worked ... | https://en.wikipedia.org/wiki/One-drop_rule |
The admixture also reflects later conditions under slavery, when white planters or their sons, or overseers, frequently raped African women. There were also freely chosen relationships among individuals of different or mixed races. Shriver's 2002 survey found different current admixture rates by region, reflecting hist... | https://en.wikipedia.org/wiki/One-drop_rule |
For example, he found that the black populations with the highest percentage of white ancestry lived in California and Seattle, Washington. These were both majority-white destinations during the Great Migration of 1940–1970 of African Americans from the Deep South of Louisiana, Texas and Mississippi. Blacks sampled in ... | https://en.wikipedia.org/wiki/One-drop_rule |
DNA testing has limitations and should not be depended on by individuals to answer all questions about heritage. Duster said that neither Shriver's research nor Gates' PBS program adequately acknowledged the limitations of genetic testing.Similarly, the Indigenous Peoples Council on Biocolonialism (IPCB) notes that: "N... | https://en.wikipedia.org/wiki/One-drop_rule |
Genetic testing has shown three major waves of ancient migration from Asia among Native Americans but cannot distinguish further among most of the various tribes in the Americas. Some critics of testing believe that more markers will be identified as more Native Americans of various tribes are tested, as they believe t... | https://en.wikipedia.org/wiki/One-drop_rule |
Charles W. Chesnutt, who was of mixed race and grew up in the North, wrote stories and novels about the issues of mixed-race people in southern society in the aftermath of the Civil War. The one-drop rule and its consequences have been the subject of numerous works of popular culture. The American musical Show Boat (19... | https://en.wikipedia.org/wiki/One-drop_rule |
Steve, a white man married to a mixed-race woman who passes as white, is pursued by a Southern sheriff. He intends to arrest Steve and charge him with miscegenation for being married to a woman of partly black ancestry. Steve pricks his wife's finger and swallows some of her blood. | https://en.wikipedia.org/wiki/One-drop_rule |
When the sheriff arrives, Steve asks him whether he would consider a man to be white if he had "negro blood" in him. The sheriff replies that "one drop of Negro blood makes you a Negro in these parts". Steve tells the sheriff that he has "more than a drop of negro blood in me". After being assured by others that Steve ... | https://en.wikipedia.org/wiki/One-drop_rule |
In zoology, an annulus is an external circular ring. Annuli are commonly found in segmented animals such as earthworms and leeches. The bodies of these annelids are externally marked by annuli that are arranged in series with each other. An annulus may also be an indication of growth in certain species, similar to dend... | https://en.wikipedia.org/wiki/Annulus_(zoology) |
For example, in fish, it is a series of concentric rings (or annuli) formed in the scales of bony fish. In bivalve mollusks, annuli are concentric growth rings in their shells. == References == | https://en.wikipedia.org/wiki/Annulus_(zoology) |
Russel Blaine Nye (February 17, 1913 – September 2, 1993) was an American professor of English who in the 1960s pioneered popular culture studies. He was the author of a dozen books, including George Bancroft: Brahmin Rebel which won the 1945 Pulitzer Prize for Biography or Autobiography. Born in Viola, Wisconsin, Nye ... | https://en.wikipedia.org/wiki/Russel_B._Nye |
Nye taught in the English department at Michigan State University from 1941 to 1979.In 1957 after the director of the Detroit Public Library claimed that L. Frank Baum's novel The Wonderful Wizard of Oz had no value and should not be stocked by libraries, Nye and Martin Gardner published a new critical edition of the n... | https://en.wikipedia.org/wiki/Russel_B._Nye |
Russel B. Nye, The Mind and Art of George Bancroft (1939) Russel B. Nye, George Bancroft: Brahmin Rebel (1944) Russel B. Nye, Fettered Freedom: Civil Liberties and the Slavery Controversy 1830-1860 (1948) Michigan State University Press Russel B. Nye and Jack Eric Morpurgo, A History of the United States. Volume One: T... | https://en.wikipedia.org/wiki/Russel_B._Nye |
(1955; Third Edition 1970) Penguin Books Russel B. Nye and Martin Gardner, The Wizard of Oz and Who He Was (1957) Russel B. Nye, The cultural life of the new Nation, 1776-1830 (1960) New York: Harper Russel B. Nye, This almost chosen people; essays in the history of American ideas (1966) Michigan State University Press... | https://en.wikipedia.org/wiki/Russel_B._Nye |
The mental environment refers to the sum of all societal influences upon mental health. The term is often used in a context critical of the mental environment in industrialized societies. It is argued that just as industrial societies produce physical toxins and pollutants which harm humans physical health, they also p... | https://en.wikipedia.org/wiki/Mental_environment |
Delusions such as these rooted from childhood are often hard to completely regulate from a person's life.The idea has its roots in evolutionary psychology, as the deleterious consequences of a poor mental environment can be explained by the mismatch between the mental environment humans evolved to exist within and the ... | https://en.wikipedia.org/wiki/Mental_environment |
We can influence the mental environment around us, but to a far greater extent we are influenced by the mental environment. The mental environment contains forces that affect our thinking and emotions and that can dominate our personal minds." - Marshall Vian Summers | https://en.wikipedia.org/wiki/Mental_environment |
The Phillips curve is an economic model, named after William Phillips, that correlates reduced unemployment with increasing wages in an economy. While Phillips did not directly link employment and inflation, this was a trivial deduction from his statistical findings. Paul Samuelson and Robert Solow made the connection ... | https://en.wikipedia.org/wiki/Phillips_curve |
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 correctly predicted the Stagflation of the 1970's.In the 2010s the slope of the Phillips curve appears to have declined a... | https://en.wikipedia.org/wiki/Phillips_curve |
William Phillips, a New Zealand born economist, wrote a paper in 1958 titled "The Relation between Unemployment and the Rate of Change of Money Wage Rates in the United Kingdom, 1861–1957", which was published in the quarterly journal Economica. In the paper Phillips describes how he observed an inverse relationship be... | https://en.wikipedia.org/wiki/Phillips_curve |
However, Phillips' original curve described the behavior of money wages.In the years following Phillips' 1958 paper, many economists in advanced industrial countries believed that his results showed a permanently stable relationship between inflation and unemployment. One implication of this was that governments could ... | https://en.wikipedia.org/wiki/Phillips_curve |
For example, monetary policy and/or fiscal policy could be used to stimulate the economy, raising gross domestic product and lowering the unemployment rate. Moving along the Phillips curve, this would lead to a higher inflation rate, the cost of enjoying lower unemployment rates. Economist James Forder disputes this hi... | https://en.wikipedia.org/wiki/Phillips_curve |
Some of this criticism is based on the United States' experience during the 1970s, which had periods of high unemployment and high inflation at the same time. The authors receiving those prizes include Thomas Sargent, Christopher Sims, Edmund Phelps, Edward Prescott, Robert A. Mundell, Robert E. Lucas, Milton Friedman,... | https://en.wikipedia.org/wiki/Phillips_curve |
In the 1970s, many countries experienced high levels of both inflation and unemployment also known as stagflation. Theories based on the Phillips curve suggested that this would not occur, and the curve came under attack from a group of economists headed by Milton Friedman. Friedman argued that the Phillips curve relat... | https://en.wikipedia.org/wiki/Phillips_curve |
It would be wrong, though, to think that our Figure 2 menu that related obtainable price and unemployment behavior will maintain its same shape in the longer run. What we do in a policy way during the next few years might cause it to shift in a definite way." As Samuelson and Solow had argued 8 years earlier, Friedman ... | https://en.wikipedia.org/wiki/Phillips_curve |
Unemployment would then begin to rise back to its previous level, but with higher inflation. This implies that over the longer-run there is no trade-off between inflation and unemployment. This is significant because it implies that central banks should not set unemployment targets below the natural rate.More recent re... | https://en.wikipedia.org/wiki/Phillips_curve |
Most economists no longer use the Phillips curve in its original form because it was too simplistic. A cursory analysis of US inflation and unemployment data from 1953 to 1992 shows no single curve will fit the data, but there are three rough aggregations—1955–71, 1974–84, and 1985–92—each of which shows a general, dow... | https://en.wikipedia.org/wiki/Phillips_curve |
Modern Phillips curve models include both a short-run Phillips Curve and a long-run Phillips Curve. This is because in the short run, there is generally an inverse relationship between inflation and the unemployment rate; as illustrated in the downward sloping short-run Phillips curve. In the long run, that relationshi... | https://en.wikipedia.org/wiki/Phillips_curve |
In the long run, this implies that monetary policy cannot affect unemployment, which adjusts back to its "natural rate", also called the "NAIRU". The popular textbook of Blanchard gives a textbook presentation of the expectations-augmented Phillips curve.An equation like the expectations-augmented Phillips curve also a... | https://en.wikipedia.org/wiki/Phillips_curve |
In these macroeconomic models with sticky prices, there is a positive relation between the rate of inflation and the level of demand, and therefore a negative relation between the rate of inflation and the rate of unemployment. This relationship is often called the "New Keynesian Phillips curve". Like the expectations-... | https://en.wikipedia.org/wiki/Phillips_curve |
There are at least two different mathematical derivations of the Phillips curve. First, there is the traditional or Keynesian version. Then, there is the new Classical version associated with Robert E. Lucas Jr. | https://en.wikipedia.org/wiki/Phillips_curve |
The original Phillips curve literature was not based on the unaided application of economic theory. Instead, it was based on empirical generalizations. After that, economists tried to develop theories that fit the data. | https://en.wikipedia.org/wiki/Phillips_curve |
The traditional Phillips curve story starts with a wage Phillips Curve, of the sort described by Phillips himself. This describes the rate of growth of money wages (gW). Here and below, the operator g is the equivalent of "the percentage rate of growth of" the variable that follows. g W = g W T − f ( U ) {\displaystyle... | https://en.wikipedia.org/wiki/Phillips_curve |
The focus is on only production workers' money wages, because (as discussed below) these costs are crucial to pricing decisions by the firms. This equation tells us that the growth of money wages rises with the trend rate of growth of money wages (indicated by the superscript T) and falls with the unemployment rate (U)... | https://en.wikipedia.org/wiki/Phillips_curve |
There are several possible stories behind this equation. A major one is that money wages are set by bilateral negotiations under partial bilateral monopoly: as the unemployment rate rises, all else constant worker bargaining power falls, so that workers are less able to increase their wages in the face of employer resi... | https://en.wikipedia.org/wiki/Phillips_curve |
Since the 1970s, the equation has been changed to introduce the role of inflationary expectations (or the expected inflation rate, gPex). This produces the expectations-augmented wage Phillips curve: g W = g W T − f ( U ) + λ g P ex . {\displaystyle gW=gW^{T}-f(U)+\lambda gP^{\text{ex}}.} | https://en.wikipedia.org/wiki/Phillips_curve |
The introduction of inflationary expectations into the equation implies that actual inflation can feed back into inflationary expectations and thus cause further inflation. The late economist James Tobin dubbed the last term "inflationary inertia", because in the current period, inflation exists which represents an inf... | https://en.wikipedia.org/wiki/Phillips_curve |
In this spiral, employers try to protect profits by raising their prices and employees try to keep up with inflation to protect their real wages. This process can feed on itself, becoming a self-fulfilling prophecy. The parameter λ (which is presumed constant during any time period) represents the degree to which emplo... | https://en.wikipedia.org/wiki/Phillips_curve |
It is usually assumed that this parameter equals 1 in the long run. In addition, the function f() was modified to introduce the idea of the non-accelerating inflation rate of unemployment (NAIRU) or what's sometimes called the "natural" rate of unemployment or the inflation-threshold unemployment rate: Here, U* is the ... | https://en.wikipedia.org/wiki/Phillips_curve |
Similarly, if U > U*, inflation tends to slow. It is assumed that f(0) = 0, so that when U = U*, the f term drops out of the equation. In equation (1), the roles of gWT and gPex seem to be redundant, playing much the same role. | https://en.wikipedia.org/wiki/Phillips_curve |
However, assuming that λ is equal to unity, it can be seen that they are not. If the trend rate of growth of money wages equals zero, then the case where U equals U* implies that gW equals expected inflation. That is, expected real wages are constant. | https://en.wikipedia.org/wiki/Phillips_curve |
In any reasonable economy, however, having constant expected real wages could only be consistent with actual real wages that are constant over the long haul. This does not fit with economic experience in the U.S. | https://en.wikipedia.org/wiki/Phillips_curve |
or any other major industrial country. Even though real wages have not risen much in recent years, there have been important increases over the decades. An alternative is to assume that the trend rate of growth of money wages equals the trend rate of growth of average labor productivity (Z). | https://en.wikipedia.org/wiki/Phillips_curve |
That is: Under assumption (2), when U equals U* and λ equals unity, expected real wages would increase with labor productivity. This would be consistent with an economy in which actual real wages increase with labor productivity. Deviations of real-wage trends from those of labor productivity might be explained by refe... | https://en.wikipedia.org/wiki/Phillips_curve |
Next, there is price behavior. The standard assumption is that markets are imperfectly competitive, where most businesses have some power to set prices. So the model assumes that the average business sets a unit price (P) as a mark-up (M) over the unit labor cost in production measured at a standard rate of capacity ut... | https://en.wikipedia.org/wiki/Phillips_curve |
For example, assume that the growth of labor productivity is the same as that in the trend and that current productivity equals its trend value: gZ = gZT and Z = ZT.The markup reflects both the firm's degree of market power and the extent to which overhead costs have to be paid. Put another way, all else equal, M rises... | https://en.wikipedia.org/wiki/Phillips_curve |
So the equation can be restated as: P = M × (production employment cost per worker)/(output per production employee) + UMC.This equation can again be stated as: P = M×(average money wage)/(production labor productivity) + UMC= M×(W/Z) + UMC.Now, assume that both the average price/cost mark-up (M) and UMC are constant. ... | https://en.wikipedia.org/wiki/Phillips_curve |
Then, combined with the wage Phillips curve and the assumption made above about the trend behavior of money wages , this price-inflation equation gives us a simple expectations-augmented price Phillips curve: gP = −f(U − U*) + λ·gPex.Some assume that we can simply add in gUMC, the rate of growth of UMC, in order to re... | https://en.wikipedia.org/wiki/Phillips_curve |
This represents the long-term equilibrium of expectations adjustment. Part of this adjustment may involve the adaptation of expectations to the experience with actual inflation. Another might involve guesses made by people in the economy based on other evidence. | https://en.wikipedia.org/wiki/Phillips_curve |
(The latter idea gave us the notion of so-called rational expectations.) Expectational equilibrium gives us the long-term Phillips curve. First, with λ less than unity: gP = ·(−f(U − U*) + gUMC).This is nothing but a steeper version of the short-run Phillips curve above. | https://en.wikipedia.org/wiki/Phillips_curve |
Inflation rises as unemployment falls, while this connection is stronger. That is, a low unemployment rate (less than U*) will be associated with a higher inflation rate in the long run than in the short run. This occurs because the actual higher-inflation situation seen in the short run feeds back to raise inflationar... | https://en.wikipedia.org/wiki/Phillips_curve |
Similarly, at high unemployment rates (greater than U*) lead to low inflation rates. These in turn encourage lower inflationary expectations, so that inflation itself drops again. | https://en.wikipedia.org/wiki/Phillips_curve |
This logic goes further if λ is equal to unity, i.e., if workers are able to protect their wages completely from expected inflation, even in the short run. Now, the Triangle Model equation becomes: - f(U − U*) = gUMC.If we further assume (as seems reasonable) that there are no long-term supply shocks, this can be simpl... | https://en.wikipedia.org/wiki/Phillips_curve |
To truly understand and criticize the uniqueness of U*, a more sophisticated and realistic model is needed. For example, we might introduce the idea that workers in different sectors push for money wage increases that are similar to those in other sectors. Or we might make the model even more realistic. One important p... | https://en.wikipedia.org/wiki/Phillips_curve |
The Phillips curve equation can be derived from the (short-run) Lucas aggregate supply function. The Lucas approach is very different from that of the traditional view. Instead of starting with empirical data, he started with a classical economic model following very simple economic principles. Start with the aggregate... | https://en.wikipedia.org/wiki/Phillips_curve |
Lucas assumes that Y n {\displaystyle Y_{n}} has a unique value. Note that this equation indicates that when expectations of future inflation (or, more correctly, the future price level) are totally accurate, the last term drops out, so that actual output equals the so-called "natural" level of real GDP. This means tha... | https://en.wikipedia.org/wiki/Phillips_curve |
(The idea has been expressed first by Keynes, General Theory, Chapter 20 section III paragraph 4). This differs from other views of the Phillips curve, in which the failure to attain the "natural" level of output can be due to the imperfection or incompleteness of markets, the stickiness of prices, and the like. In the... | https://en.wikipedia.org/wiki/Phillips_curve |
To the "new Classical" followers of Lucas, markets are presumed to be perfect and always attain equilibrium (given inflationary expectations). We re-arrange the equation into: P = P e + Y − Y n a {\displaystyle P=P_{e}+{\frac {Y-Y_{n}}{a}}} Next we add unexpected exogenous shocks to the world supply v {\displaystyle v}... | https://en.wikipedia.org/wiki/Phillips_curve |
Therefore, using Y − Y n a = − b ( U − U n ) {\displaystyle {\frac {Y-Y_{n}}{a}}=-b(U-U_{n})} where b {\displaystyle b} is a positive constant, U {\displaystyle U} is unemployment, and U n {\displaystyle U_{n}} is the natural rate of unemployment or NAIRU, we arrive at the final form of the short-run Phillips curve: π ... | https://en.wikipedia.org/wiki/Phillips_curve |
The New Keynesian Phillips curve was originally derived by Roberts in 1995, and since been used in most state-of-the-art New Keynesian DSGE models like the one of Clarida, Galí, and Gertler (2000). π t = β E t + κ y t {\displaystyle \pi _{t}=\beta E_{t}+\kappa y_{t}} where κ = α ϕ 1 − α . {\displaystyle \kappa ={\fra... | https://en.wikipedia.org/wiki/Phillips_curve |
In the 1970s, new theories, such as rational expectations and the NAIRU (non-accelerating inflation rate of unemployment) arose to explain how stagflation could occur. The latter theory, also known as the "natural rate of unemployment", distinguished between the "short-term" Phillips curve and the "long-term" one. The ... | https://en.wikipedia.org/wiki/Phillips_curve |
The long-run Phillips Curve was thus vertical, so there was no trade-off between inflation and unemployment. Milton Friedman in 1976 and Edmund Phelps in 2006 won the Nobel Prize in Economics in part for this work. However, the expectations argument was in fact very widely understood (albeit not formally) before Friedm... | https://en.wikipedia.org/wiki/Phillips_curve |
The NAIRU theory says that when unemployment is at the rate defined by this line, inflation will be stable. However, in the short-run policymakers will face an inflation-unemployment rate trade-off marked by the "Initial Short-Run Phillips Curve" in the graph. Policymakers can, therefore, reduce the unemployment rate t... | https://en.wikipedia.org/wiki/Phillips_curve |
However, according to the NAIRU, exploiting this short-run trade-off will raise inflation expectations, shifting the short-run curve rightward to the "new short-run Phillips curve" and moving the point of equilibrium from B to C. Thus the reduction in unemployment below the "Natural Rate" will be temporary, and lead on... | https://en.wikipedia.org/wiki/Phillips_curve |
The name "NAIRU" arises because with actual unemployment below it, inflation accelerates, while with unemployment above it, inflation decelerates. With the actual rate equal to it, inflation is stable, neither accelerating nor decelerating. One practical use of this model was to explain stagflation, which confounded th... | https://en.wikipedia.org/wiki/Phillips_curve |
The rational expectations theory said that expectations of inflation were equal to what actually happened, with some minor and temporary errors. This, in turn, suggested that the short-run period was so short that it was non-existent: any effort to reduce unemployment below the NAIRU, for example, would immediately cau... | https://en.wikipedia.org/wiki/Phillips_curve |
In this perspective, any deviation of the actual unemployment rate from the NAIRU was an illusion. However, in the 1990s in the U.S., it became increasingly clear that the NAIRU did not have a unique equilibrium and could change in unpredictable ways. | https://en.wikipedia.org/wiki/Phillips_curve |
In the late 1990s, the actual unemployment rate fell below 4% of the labor force, much lower than almost all estimates of the NAIRU. But inflation stayed very moderate rather than accelerating. So, just as the Phillips curve had become a subject of debate, so did the NAIRU. Furthermore, the concept of rational expectat... | https://en.wikipedia.org/wiki/Phillips_curve |
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