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LORENZ CURVE: In general, a diagram illustrating the degree of inequality and concentration for a group. This is accomplished by plotting the cumulative percentage of a total amount obtained by cumulative percentages of the group. A common use of the Lorenz curve is the distribution of income, in which the cumulative percentage of income is measured on the vertical axis and the cumulative percentage of the population is measured on the horizontal axis. Perfect equality is indicated by a 45-degree line (that is, 10% of the population has 10% of the income, 20% of the population has 20% of the income, etc.). The actual Lorenz curve inevitably lies below the 45-degree line. The extent that the Lorenz curve differs from the 45-degree line indicates the extent of inequality.
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Lesson 3: Scarcity | Unit 1: The Concept
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- Scarcity is the pervasive condition that exists because society has unlimited wants and needs, but limited resources used for their satisfaction.
Meaning:- We can't have everything because resources are limited.
Unlimited wants and needs are half of the scarcity problem.- Unlimited wants and needs are what motivate us to take action, to produce goods, and to advance our well-being.
- We are motivated to do things that satisfy these wants and needs. Satisfaction is achieved when wants and needs are fulfilled.
- Scarcity results because wants and needs are unlimited. No one has ever been completely satisfied. We always want more.
Limited resources are the other half of our scarcity problem. - Resources are the stuff that we use to produce the goods that fulfill our wants and needs.
- Resources are the things that make satisfaction possible.
- Resources are limited. We have only so much 'stuff' than can be used to produce the goods that satisfy our wants and needs.
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MONOPOLISTIC COMPETITION, ADVERTISING Advertising is commonly used by firms operating under monopolistic competition as a way to create product differentiation and thus to acquire some degree of market control and thus charge a higher price.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time going from convenience store to convenience store trying to buy either a remote controlled World War I bi-plane or a wall poster commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for telephone calls from former employers.
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This isn't me! What am I?
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The first paper currency used in North America was pasteboard playing cards "temporarily" authorized as money by the colonial governor of French Canada, awaiting "real money" from France.
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"My philosophy of life is that if we make up our mind what we are going to make of our lives, then work hard toward that goal, we never lose - somehow we win out." -- President Ronald Reagan
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ARMA
Autoregressive Moving Average
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