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NATIONAL INCOME: The total income earned by the citizens of the national economy as a result of their ownership of resources used in the production of final goods and services during a given period of time, usually one year. This is the government's official measure of how much income is generated by the economy. National income, generally abbreviated as NI, is the broadest, most comprehensive of three income measures reported quarterly (every three months) in the National Income and Product Accounts by the Bureau of Economic Analysis.

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UNPLANNED INVESTMENT: Investment expenditures that the business sector undertakes apart from those they intend to undertake based on expected economic conditions, interest rates, sales, and profitability. Another term for unplanned investment is change in inventories, which result when aggregate expenditures differ from aggregate output. Unplanned investment can be either positive or negative, meaning business inventories can either rise or fall. Should unplanned investment occur, then actual and planned investment differ, aggregate expenditures are not equal to aggregate output, and the macroeconomy is not in equilibrium.

     See also | investment expenditures | change in inventories | change in business inventories | business sector | Keynesian economics | macroeconomics | equilibrium | actual investment | planned investment |


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UNPLANNED INVESTMENT, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: December 8, 2025].


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ASSUMPTIONS, KEYNESIAN ECONOMICS

The macroeconomic study of Keynesian economics relies on three key assumptions--rigid prices, effective demand, and savings-investment determinants. First, rigid or inflexible prices prevent some markets from achieving equilibrium in the short run. Second, effective demand means that consumption expenditures are based on actual income, not full employment or equilibrium income. Lastly, important savings and investment determinants include income, expectations, and other influences beyond the interest rate. These three assumptions imply that the economy can achieve a short-run equilibrium at less than full-employment production.

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Today, you are likely to spend a great deal of time at a flea market trying to buy either a how-to book on surfing the Internet or a computer that can play music and burn CDs. Be on the lookout for letters from the Internal Revenue Service.
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Natural gas has no odor. The smell is added artificially so that leaks can be detected.
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