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ACTUAL INVESTMENT: Investment expenditures that the business sector actual undertakes during a given time period, including both planned investment and any unplanned inventory changes. This is a critical component of Keynesian economics and the analysis of macroeconomic equilibrium, which occurs when actual investment is equal to planned investment. The difference between planned and actual investment is unplanned investment, which is inventory changes caused by a difference between aggregate expenditures and aggregate output. Should actual and planned investment differ, then aggregate expenditures are not equal to aggregate output, and the macroeconomy is not in equilibrium.
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Lesson 4: Production Possibilities | Unit 3: The Curve
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Page: 11 of 24
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The slope of a line is measured by calculating the change in the value measured on the vertical axis divided by the change in the value measured on the horizontal axis. - Another way of saying this is to take the rise over the run.
| rise | change in shoes | | slope = | ---- = | -------------------------- | | run | change in calibrators |
- Slope between I and J is -70. Rise is a decrease of 70. Run is an increase of 1.
The slope of the production possibilities curve is the opportunity cost of the good measured on the horizontal axis, which in our example is clock calibrators.
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QUANTITY SUPPLIED The specific quantity of a good that sellers are willing and able to sell at a specific supply price. The key word is "specific." Quantity supplied and supply price form matched pairs--one quantity, one price. The combination of all price-quantity pairs is then what constitutes supply. The supply curve is a plot of the quantity supplied at each supply price.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time at a flea market trying to buy either a brown leather attache case or car battery jumper cables. Be on the lookout for strangers with large satchels of used undergarments.
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In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
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"I much prefer the sharpest criticism of a single intelligent man to the thoughtless approval of the masses." -- Johannes Kepler, German Astronomer
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ILO
International Labor Office
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