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RIVAL CONSUMPTION: Consumption of a good by one person imposes a cost on, or prevents consumption of the good by, another person. Some goods, like food, have extremely rival consumption. One person, and only one person, gets the benefit. Other goods, like national defense, have no consumption rivalry, everyone can benefit simultaneously without imposing a cost on others. This is one of the two key characteristics of a good (the other is excludability) that distinguishes between common-property goods, near-public goods, private goods, and public goods.
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Lesson 1: Economic Basics | Unit 1: Economics
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Economics: A social science that studies the allocation of scarce resources used to produce goods and services that satisfy consumers' unlimited wants and needs.Key points in the study of economics: - Social Science: Economics uses the scientific method to explain and study our society.
- Allocation: Economics studies allocation decisions about distributing resources, goods and services.
- Scarce Resources: The economy's resources are limited relative to their use.
- Production: We transform available resources into goods and services. That's production.
- Consumption: The goods and services produced are used to satisfy wants and needs. That's consumption.
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MARGINAL REVENUE, PERFECT COMPETITION The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a perfectly competitive firm receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a perfectly competitive firm equates marginal revenue and marginal cost.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time browsing about a thrift store hoping to buy either semi-gloss photo paper that works with your neighbor's printer or a birthday gift for your father that doesn't look like every other birthday gift for your father. Be on the lookout for the last item on a shelf.
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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.
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"Progress always involves risk. You can't steal second base and keep your foot on first. " -- Frederick B. Wilcox
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NTB
Non-Tariff Barrier
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