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WIDGET: A fictitious good commonly used by economic instructors to demonstrate economic principles or undertake hypothetical analyses. For example, the analysis of short-run production for a firm might be demonstrated through the production of widgets. Alternatively, the law of demand might be illustrated with a table or curve comparing the price of widgets with the quantity demanded of widgets. If such a good exists, and there is no clear evidence that widgets have every existed, it is a small mechanical device, constructed of interlocking cogs, several knobs, and at least one handle. Widgets are most often used when thingamajigs and dohickies are unavailable.
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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 The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a 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 firm equates marginal revenue and marginal cost.
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WHITE GULLIBON
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel seeking to buy either a turbo-powered vacuum cleaner or a battery-powered, rechargeable vacuum cleaner. Be on the lookout for high interest rates.
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It's estimated that the U.S. economy has about $20 million of counterfeit currency in circulation, less than 0.001 perecent of the total legal currency.
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"Sometimes when you innovate, you make mistakes. It is best to admit them quickly and get on with improving your other innovations. " -- Steve Jobs, Apple Computer founder
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BVAR
Bayesian VAR (Vector Autoregression)
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