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SALES TAX: A tax on retail sales. This is major source of revenue for many state and local governments. Because poorer people tend to spend a larger share of their income on stuff covered by sales taxes, it tends to be a regressive tax. To reduce this regressiveness, some state and local governments excluded items like food and medicine.

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MARGINAL REVENUE PRODUCT AND FACTOR DEMAND

A perfectly competitive firm's factor demand curve is that negatively-sloped portion of its marginal revenue product curve. A perfectly competitive firm maximizes profit by hiring the quantity of input that equates factor price and marginal revenue product. As such, the firm moves along its negatively-sloped marginal revenue product curve in response to changing factor prices.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time wandering around the downtown area trying to buy either a revolving spice rack or a how-to book on home repairs. Be on the lookout for the last item on a shelf.
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
"The vacuum created by failure to communicate will quickly be filled with rumor, misrepresentations, drivel and poison. "

-- C. Northcote Parkinson, historian

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