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BARTER EXCHANGE: A method of trading goods, commodities, or services, directly for one another without the use of money. In a barter exchange one good is traded directly for another. This sort of exchange ultimately requires a double coincidence of wants, meaning that each trader has what the other trader wants and wants what the other has. Without a double coincidence of wants the exchange process can become exceedingly complex, requiring a great deal of resources to complete transactions, resources that can not be used for production. In fact, inefficient barter trading was the primary reason that money was invented. With money, more resources can be used for production and fewer are needed for trading. See market.
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CARDINAL UTILITY The notion that utility--the satisfaction of wants and needs achieved through the consumption of goods and services--can be measured with numerical values (1, 2, 3, etc.) that are based on a benchmark scale. Cardinal utility presumes that satisfaction is a measurable characteristic of a person, like height or weight. The contrasting notion is ordinal utility, which is based on a ranking of preferences.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs wanting to buy either a how-to book on building remote controlled airplanes or an extra large beach blanket. Be on the lookout for the last item on a shelf.
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The earliest known use of paper currency was about 1270 in China during the rule of Kubla Khan.
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"If you don't have time to do it right, when will you have time to do it over?" -- John Wooden, Basketball coach
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CPI-W
Consumer Price Index-Urban Wage Earners and Clerical Workers
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