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AD VALOREM TAX: A tax that is specified as a percentage of value. Sales, income, and property taxes are three of the more popular ad valorem taxes devised by government. The total ad valorem tax paid increases with the value of what's being taxed.
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Lesson 2: Economic Science | Unit 2: Theory
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Page: 6 of 20
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Economic theories are abstractions of the real world.
Three ways to abstract:- Words. The earliest human method of abstraction was to represent objects with words. Words also represent ideas. But words can have different meanings.
- Graphs. Pictures, especially graphical pictures. Many economic theories are abstractly represented with graphs. A picture or graph can be less confusing that words.
- Equations. Graphs are two-dimensional pictures of mathematical equations. Economic theories are often abstractly represented by equations. Equations can represent relationships between three or more things, like that for X, Y and Z:
Y = 3 + 2X - 4Z
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TOTAL REVENUE, PERFECT COMPETITION The revenue received by a perfectly competitive firm for the sale of its output. Total revenue is one two bits of information a perfectly competitive firm needs to calculate economic profit, the other is total cost. In general, total revenue is the price times quantity--the price received for selling a good times the quantity of the good sold at that price. For a perfectly competitive firm, which receives a single unchanging price for all output sold, the calculation is relatively easy. Two other revenue measures directly related to total revenue are average revenue and marginal revenue. Total revenue is often depicted as a total revenue curve.
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BEIGE MUNDORTLE
[What's This?]
Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors looking to buy either a birthday greeting card for your aunt or a wall poster commemorating the moon landing. Be on the lookout for slow moving vehicles with darkened windows.
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The first U.S. fire insurance company was established by Benjamin Franklin in 1752 in Philadelphia.
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"Democracy is based on the conviction that man has the moral and intellectual capacity . . . to govern himself with reason and justice. " -- Harry Truman, 33rd U.S. president
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GLS
Generalized Least Squares
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