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CARDINAL: A measurement based on a scale or quantitative numbers, such as 1, 5, or 357.2, that enables a comparison in magnitude. Comparability means, for example, that the difference between 5 and 2 is the same as the difference between 12 and 9. Measures such as height and weight use cardinal numbers. Most economic measures are based on cardinal numbers, including gross domestic product, unemployment rate, the price of chocolate, and the quantity of wheat produced. The benefit of cardinal measurement is the ability to directly compare one measure with another. If, for example, the price of chocolate is $1 a pound and the price of wheat is $4 a pound, then wheat is four times more expensive than chocolate. Ordinal measures, which involve relative ranking, is an alternative type of measure.
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AGGREGATE DEMAND AND MARKET DEMAND The aggregate demand curve, or AD curve, has similarities to, but differences from, the standard market demand curve. Both are negatively sloped. Both relate price and quantity. However, the market demand curve is negatively sloped because of the income and substitution effects and the aggregate demand curve is negatively sloped because of the real-balance, interest-rate, and net-export effects.
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PURPLE SMARPHIN
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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club wanting to buy either blue cotton balls or a genuine down-filled pillow. Be on the lookout for slightly overweight pizza delivery guys.
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The standard "debt" notation I.O.U. does not mean "I owe you," but actually stands for "I owe unto..."
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"There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle." -- Albert Einstein
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Securities and Investment Board
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