Learning curve in psychology and economics The first person to describe the learning curve was Hermann Ebbinghaus in 1885. He found that the time required to memorize a nonsense word increased sharply as the number of syllables increased.[1] Psychologist‚ Arthur Bills gave a more detailed description of learning curves in 1934. He also discussed the properties of different types of learning curves‚ such as negative acceleration‚ positive acceleration‚ plateaus‚ and ogive curves.[2] In 1936‚ Theodore
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The Laffer curve‚ named after the economist Arthur Laffer‚ is a curve that demonstrates the trade-off between tax-rates and tax-revenues (Wanniski 1978). It is used to illustrate the concept of taxable income elasticity‚ the idea that a government can maximise the revenue by setting the tax rates at an optimum point. This curve can be traced back as far as 1844 to a French economist Jules Dupit who in 1844 found similar effects as Laffer did (Laffer 2004). Dupit also saw tax revenues rising from
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The SaleS learning Curve & virTual SaleS Advice for a successful startup‚ product launch or foray into new sales territory W hen launching a new company‚ product or service or expanding into a new territory‚ the temptation is often to hire a new VP of sales‚ some enterprise reps and build a high powered sales force as quickly as possible. It has been demonstrated‚ however‚ that ramping up a sales force too quickly can have very negative impact on the bottom line. As founding Chairman and CEO
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The Bathtub Curve and Product Failure Behavior Part One - The Bathtub Curve‚ Infant Mortality and Burn-in by Dennis J. Wilkins Retired Hewlett-Packard Senior Reliability Specialist‚ currently a ReliaSoft Reliability Field Consultant This paper is adapted with permission from work done while at Hewlett-Packard. Reliability specialists often describe the lifetime of a population of products using a graphical representation called the bathtub curve. The bathtub curve consists of three periods: an
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Pizza Store Curve Theory February 10‚ 2013 Operations Management/OPS/571 Professor John Quesnel In this paper the approach is to understand the formulation of learning curve theory and objective is to maximize profits and increasing organizational performance for Mario ’s Pizzeria. The three fundamental assumptions followed by the learning curve theory are total time for completing a task decreases with the increased repetition‚ improvement percentage decreases
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Limitations of the Lorenz Curve The Lorenz Curve illustrates the degree of equality (or inequality) of distribution of income in an economy. It plots the cumulative percentage of income received by cumulative shares of the population and includes a straight line to illustrate perfect income equality. Thus‚ the closer the Lorenz curve is to the straight line‚ the greater the equality in income distribution‚ while‚ the further away it is from the straight line‚ the more unequal the distribution
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experienced many hardships from the British‚ and at multiple times were let down from what they estimated they were deserving of. The “J curve” is known as a diagram indicating the climbing up and the sudden down of any idea‚ or action. The “J curve” is an accurate representation of the colonist’s expectations at the time of the “oppressive” British. The “J curve” seems to center around two main points for the colonists. The first was the wars they fought‚ the outcomes‚ and the government and the
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The Bell Curve The opinions of Herrnstein and Murray in their book‚ The Bell Curve is that human intelligence is both inherited and also has environmental factors that contribute to a person’s future in many different areas such as; finances‚ a career‚ when they start a family‚ and whether or not a person will break the law instead of a person’s level of education and economic status. The authors go on to say that the more intelligent people of society are keeping their distance from the less
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THE S-CURVE Introduction The first time most project managers become aware of the existence of S Curves is when they are requested by the client or senior management to include one in their next progress report. The following explains what the mysterious S Curve is‚ why it is an important project management tool‚ and how to generate one. What is a S Curve? A S Curve is defined as "a display of cumulative costs‚ labour hours or other quantities plotted against time. The name derives from
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CURVE SKETCHING This is a handout that will help you systematically sketch functions on a coordinate plane. This handout also contains definitions of relevant terms needed for curve sketching. Another handout available in the Tutoring Center has 3 sample problems worked out completely. ASYMPTOTES: This handout will discuss three kinds of asymptotes: vertical‚ horizontal‚ and slant. VERTICAL ASYMPTOTES We define the line x = c as a vertical asymptote of the graph of ‚ iff (if and only
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