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X-M: The abbreviation for net exports, which is the difference between exports, goods and services produced by the domestic economy and purchased by the foreign sector, and imports, goods and services produced by the foreign sector and purchased by the domestic economy. While exports and imports important unto themselves, when combined into a single measure net exports captures the overall interaction between the foreign sector and the domestic economy. Arithmetically speaking, if exports exceed imports, then net exports are positive, and if imports exceed exports, the net exports are negative.
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                           PRINCIPLE: A generally accepted, verified, proven, fundamental law of nature. A principle captures a cause-and-effect relation about the workings of the world that has been tested and verified through the scientific method. The law of demand, law of increasing opportunity cost, and law of diminishing marginal utility are three fundamental (and extremely important) economic principles. Principles form the structural foundation of the theories used in economic analysis. As a house is constructed from concrete, lumber, and nails, a theory is constructed from principles. To be a fundamental law of nature, a principle must capture a cause-and-effect relation about the workings of the real world. One example of a fundamental law is something like: If demand price rises, quantity demanded falls. The scientific method is the process of building theories by identifying and verifying these fundamental laws of nature. Verified HypothesisEvery principle begins life as a hypothesis, as a reasonable cause-and-effect statement about the world. A hypothesis becomes a principle, a law of nature, only after it has been systematically and extensively verified with real world data. Professor Grumpinkston, for example, might hypothesize that seating position in a classroom affects learning and the grades earned by students. But such a hypothesis is little more than speculation until it is verified with actual observations--over and over again.A principle, as such, captures a fundamental piece of the machinery that makes up the complex world. It is the gear, the coiled spring, the lever, the switch, that when assembled with other components make the world work. While the ultimate goal of the scientific method is to understand the entire complexity of the world, this task is accomplished one principle at a time. Ceteris ParibusA principle is generally stated in the form of "If A, then B" or alternatively that "A causes B." For example the law of demand can be stated as:If demand price increases, then quantity demanded decreases. Or:A higher demand price causes a smaller quantity demanded. Whichever form is used, a principle isolates the relation between two events, A and B. To isolate the relation it is critical to control other possible influences using the ceteris paribus assumption. Ceteris paribus means other factors are held constant. For the law of demand, other factors such as buyers' income, the prices of other goods, and buyers' preferences are held unchanged.
Recommended Citation:PRINCIPLE, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2024. [Accessed: September 20, 2024].
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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time calling an endless list of 800 numbers looking to buy either a rim for your spare tire or decorative celebrity figurines. Be on the lookout for fairy dust that tastes like salt.
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The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
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"Man is born to live, not to prepare for life. " -- Boris Pasternak, writer
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TGE
Tokyo Grain Exchange (Japan)
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