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December 2, 2023 

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LINE GRAPH: A graph containing one or more lines or curves that are used to represent relations between two (or more) variables. A line graph is a useful method of illustrating scientific principles and hypotheses important for the economic analysis.

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LERNER INDEX: The difference between price (p) and marginal cost (mc) as a fraction of price, that is [p-mc]/p. The Lerner index is usually taken as an indicator of market power because the larger the index, the larger the difference between price and marginal cost, that is, the larger the distance between the price and the competitive price. The Lerner index depends on the elasticity of demand. The Lerner index is also called the price-cost margin.

     See also | market power | monopoly | price | competitive market | price maker | price leadership | marginal-cost pricing | price-cost margin |


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LERNER INDEX, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2023. [Accessed: December 2, 2023].


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TAX WEDGE

The difference between demand price and supply price that is created when a tax is imposed on a market. Placing a tax on a market disrupts what otherwise would be an equilibrium equality between demand price and supply price. A tax wedge results because the tax is included in the demand price paid by buyers but not in the supply price received by sellers. With standard demand (negative slope) and supply (positive slope) curves, the incidence of the tax (who pays) is divided between buyers and sellers.

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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club seeking to buy either a decorative windchime with plastic or a flower arrangement for that special day for your mother. Be on the lookout for gnomes hiding in cypress trees.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
"A ship ought not to be held by one anchor, nor life by a single hope. "

-- Epictetus, philosopher

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