Sunday  September 19, 2021
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 RISK AVERSE: A person who values a certain income more than an equal amount of income that involves risk or uncertainty. To illustrate, let's say that you're given two options--(A) a guaranteed \$1,000 or (b) a 50-50 chance of getting either \$500 or \$1,500. If you chose option A, then you're risk averse. Both options give you the same "expected" values. In other words, if you select option B a few hundred times, then your average amount over those few hundred times is \$1,000.
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 Lesson 9: Macro Basics | Unit 5: Issues Page: 16 of 16

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• How differing views on the 'best' economic policies result from basic differences in ideologies, values, and beliefs, and from vested interests of those benefitting from policies.
• Why we have alternative, competing macroeconomic theories because of differing political views and the inability to undertake definitive tests of each theory.

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ARC ELASTICITY

The average elasticity for discrete changes in two variables. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of initial and ending values of each variable, rather than initial values. Arc elasticity is generally calculated using the midpoint elasticity formula. The contrast to arc elasticity is point elasticity. For infinitesimally small changes in two variables, arc elasticity is the same as point elasticity.

 BLUE PLACIDOLA[What's This?] Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors wanting to buy either yellow cotton balls or a set of steel-belted radial snow tires. Be on the lookout for the happiest person in the room.Your Complete Scope
 The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
 "When you play, play hard; when you work, don't play at all. "-- Theodore Roosevelt, 26th US president
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