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SAVING: The after-tax disposable income of the household sector that is not used for consumption expenditures. In general terms, saving is the use of income to purchase legal claims through financial markets rather than the direct purchase of physical goods and services. In the macroeconomic world modeled by the circular flow, saving is the diversion of household income away from consumption and into the financial markets. In this model, saving is a primary source of funds used for business investment expenditures for capital goods. Saving is also used to finance government expenditures.
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Lesson 2: Economic Science | Unit 2: Theory
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Page: 6 of 20
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Economic theories are abstractions of the real world.
Three ways to abstract:- Words. The earliest human method of abstraction was to represent objects with words. Words also represent ideas. But words can have different meanings.
- Graphs. Pictures, especially graphical pictures. Many economic theories are abstractly represented with graphs. A picture or graph can be less confusing that words.
- Equations. Graphs are two-dimensional pictures of mathematical equations. Economic theories are often abstractly represented by equations. Equations can represent relationships between three or more things, like that for X, Y and Z:
Y = 3 + 2X - 4Z
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BALANCE ON MERCHANDISE TRADE A subset of the balance of payments current account that records the difference between the payments received for exports of goods to other nations and the payments made for the imports of goods from other nations. The goods included are physical or tangible goods, but not intangible services. The balance on merchandise trade is thus appropriately divided into merchandise exported and merchandise imported. Two other subsets of the current account include the balance on services and unilateral transfers. The commonly termed balance of trade is the sum of the balance on merchandise trade and the balance on services.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"We succeed in enterprises (that) demand the positive qualities we possess, but we excel in those (that) can also make use of our defects." -- Alexis de Tocqueville, Statesman
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WACM
Weak Axiom of Cost Minimization
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