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MACRO ECONOMICS
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Assume the government imposes a price control on butter, i.e., the price control is below equilibrium price. The most likely outcome of this policy is
The butter market will exhibit excess demand.
“As the price of personal computers continue to fall, demand increases.” This headline is inaccurate because
Falling prices of personal computers increase quantity supplied
If the price of computers increase and the demand decrease, then
Computers and monitors are compliments
Suppose one observes that when the price of peanut butter increases, the demand for jelly increase. One must conclude
Peanut butter and jelly are substitutes
what is economics?
the study of how people make choices under conditions of scarcity and of the results of those choices for society.
The Scarcity Principle
-boundless needs and wants, but the resources available are liimited.
-Also called the "No-Free Lunch Principle"
Cost-Benefit Principles
individual should take actions IF the extra benefits from taking the actions are at least as great as extra cost
Rational Person
someone with well-defined personal goals who tries to fulfill those goals as best as he or she can
Economic surplus
the economic surplus from taking theat action minus its cost
Opportunity cost
the value of what must be lost in order to do the activity
sunk cost
cost that is beyond recovery at the moment a decision must be made
Marginal COST
the increase in total cost that results from carrying out one additional unit of an activity
Marginal BENEFIT
increase in total benefits from carrying out one additional unit of an activity
Average cost
total cost of taking
n
units of an activity divided by
n
.
Average benefit
total benefit of taking
n
units of an activity divided by
n
Normative Economic Priniciple
one that says how people
should
behave.
Positive Economic Principle
one that predicts how people will behave.
Microeconomics
study of
individual
choices under scarcity and its implications for the behavior of prices and the quantities in individual markets.
Macroeconomics
study of the performace of
national
economics and the
policies
that governments use to try to improve the performances.
dependent variable
variable in equation tha tis determined byt the value taken by another variable in same equation
Independent variable
variable whose value determines the value taken by another
constant
a quantity that is fixed in value
Absolute advantage
one person has an absolute advantage over another is he/she takes fewer hours to perform task
Comparitive
advantage
one person has a comparative advantage over another if his/her opportunity cost of performing a task is lower than other person's opportunity cost
Principle of comparative advantage
when 2 people have different opportunity costs for tasks, they can always increase total value of available goods & services by trading w/ one another
Production possibilities curve
a graph that describes the maximum amount of one good that can be produced for every possible level of production of the other good
attainable point
any combination of goods that can be produced using currently available resources
outsourcing
a term increasingly used to connote having services performed by low-wage workers overseas
Demand curve
a schedule or graph showing the quantity of a good that buyers wish to buy at each price
Substitution effect
the change in quantity demanded that results bcs. buyers switch to/from substitutes when the price of good changes
Income effect
change in the quantity demanded of a good because a change in the price of a good changes the buyer's purchasing power
buyer's reservation price
largest dollar amount buyer would be willing to pay for a good
Supply curve
graph or schedule showing the quantity of a good that sellers wish to sell at each price
Seller's reservation price
smallest dollar amount for which a seller would be willing to sell an additional unit, generally equal to marginal cost
equilibrium
when there is no tendency for it to change
equilibrium price/quantity
values of price/quantity for which quantity supplied & demanded are equal
market equilibrium
when all buyer's & seller's are satisfied with their respective quantities at market price
excess supply
amount by which supplied exceeds demanded; when price exceeds equilibrium price
excess demand
amount by which demanded exceeds supplied whin price is below equilibrium price
price ceiling
max. allowable price specified by law
change in quantity demanded
movement along demand curve that occurs in response to change in price
change in demand/supply
shift of demand/supply curve
complements
if increased price for one cause less demand for the other
substitutes
if increase in price for one causes more demand for another
normal good
demand curve shifts rightward(more) when income of buyer increases
inferior good
one whose demand curve shifts leftward(less) when income of buyer increases
buyer's surplus
difference between buyer's reservation price and what actually paid
seller's surplus
difference of price recieved by seller and reservation price
total surplus
difference between buyer's reservation price and seller's reservation price
"cash on the table"
metaphor for unexploited gains from exchange
efficiency
when all goods & services are produced & consumed at their respective socially optimal levels
socially optimal quantity
results in max. possible economic surplus from producing & consuming the good
Author
alleyserafine15
ID
100487
Card Set
MACRO ECONOMICS
Description
Chapters 1-3
Updated
2011-09-08T16:20:42Z
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