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TOTAL-MARGINAL RULE: A mathematical connection between a marginal value is the slope of a curve of the corresponding total value stating that the marginal IS the slope of the total curve. If the total curve has a positive slope (that is, is upward sloping), then marginal is positive. If the total product has a negative slope (downward sloping), then marginal is negative. If the total curve has a zero slope (horizontal), then marginal is zero. Moreover, if the total curve has an increasing slope (becoming steeper), then the marginal is rising. If the total curve has a decreasing slope (becoming flatter), then the marginal is falling.

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TECHNOLOGY

The sum of the knowledge and information that society has acquired concerning the use of resources in the production of goods and services. Technology often takes the form of scientific knowledge (the best combination of chemicals to make a long-lasting floor wax), but can also be plain old common sense (irrigate during a drought, not during a flood). Whether scientific or common sense, technology affects the technical efficiency with which resources are combined in production.

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GREEN LOGIGUIN
[What's This?]

Today, you are likely to spend a great deal of time at a garage sale looking to buy either a wall poster commemorating next Thursday or a pair of gray heavy duty boot socks. Be on the lookout for vindictive digital clocks with revenge on their minds.
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The average bank teller loses about $250 every year.
"The road to success is always under construction. "

-- Lily Tomlin, Actress

JIE
Journal of Industrial Economics
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