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CHANGE IN BUSINESS INVENTORIES: The increase or decrease in the stocks of final goods, intermediate goods, raw materials, and other inputs that businesses keep on hand to use in production. This is one of two main categories of gross private domestic investment included in the National Income and Product Accounts maintained by the Bureau of Economic Analysis. The other category is fixed investment. Change in business inventories is NOT what most people think of when the topic of business investment arises. Inventory changes are considered investment because firms need inventories to smooth the flow of production and sales just like they need factories and equipment to produce goods. In fact, inventories are frequently termed "working capital."

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PERFECT COMPETITION

An ideal market structure characterized by a large number of small firms, identical products sold by all firms, freedom of entry into and exit out of the industry, and perfect knowledge of prices and technology. This is one of four basic market structures. The other three are monopoly, oligopoly, and monopolistic competition. Perfect competition is an idealized market structure that is not observed in the real world. While unrealistic, it does provide an excellent benchmark that can be used to analyze real world market structures. In particular, perfect competition efficiently allocates resources.

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Today, you are likely to spend a great deal of time watching infomercials seeking to buy either a travel case for you toothbrush or a looseleaf notebook binder. Be on the lookout for infected paper cuts.
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In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
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