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Catherine Chambers of UCM Before First Exam on 2/19/2014
Macro Economics-
35
Economics
Undergraduate 2
02/18/2014

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Term
Economics
Definition
1 :is the study of choice
2:how to make people choose to allocate scarce resources among virtually unlimited wants.
Term
scarce
Definition
a good or resource that if at a price of zero, people still want more than is readily available ( but rare in economics itself)
Term
Three Key economic Ideas
Definition
1. People are Rational( you will not knowingly make a choice that will make you worse off)
2. Optimal choices are made at the margin: we consider small changes from our current condition
3. People respond to incentives : if costs or benefits of an action change- your decision might change.
Term
Marginal Benefits:
Definition
Addition to total benefits from a small change in behavior.
Term
Marginal Costs
Definition
Addition to total costs from a small change in behavior
Term
Suck Costs
Definition
are irrelavent, the term that economics use to describe past costs that have already happened.
Term
Weigh or estimate total costs and benefit
Definition
If the marginal benefits of the action are better than the marginal costs then you take that action
Term
two reasons why we respond to changes (marginal)
Definition
1. marginal decision making - makes it easy to change our choices
2. there are always substitutes- something always better, but not all substitutes are good, better, or perfect.
Term
Three Key economic questions that every society must answer.
Definition
A. What do we produce?
B. How do we produce it?
C. For whom do we produce it?
Term
2 types of techniques that are used to answer these three questions
Definition
1. centrally planned economy : all questions are answered by some central government authority
2. Market Economy : individual consumers and producers make all of these decisions.
Term
Centrally Planned Economy
Definition
-how was answered by using our resources
- for whom could be used by rationing.
- centrally planned economies don't always work
-Decision will be based in part by needs - maternalistic system.
Term
Market Economy
Definition
-Chaotic System because everyone is making decisions
-people are weighing options
-the key is the price system
Term
Price System
Definition
Changes in prices send signals to consumers and producers and leads to changes in behaviors
- if the price goes up - the production of a product goes up
- if a production goes up the consumption can go down?
Term
the invisible hand
Definition
- works more smoothly than government authority.
- all decisions are made by individuals
-gov puts restrictions on things
-we have goods and svcs that are completely produces solely by the gov
Term
Efficiency
Definition
getting the most possible output from available resources
-getting a given qty of output w/ the fewest possible resources
Term
Productive Efficiency-
Definition
producing a given output at the lowest possible cost ( not wasting resources)
Term
Allocative Efficiency
Definition
Producing goods and services that consumers want
Term
Monopoly Power
Definition
-If there is no competition then there is no guarantee to minimize costs and have efficiency
-Broken into subcompanies
-With this the government puts regulations on prices and what not
Term
externalities
Definition
occur if a third party not directly involved in a trade is affected by the trade in some way
Term
Positive Externality
Definition
third party enjoys the benefits
Term
Negative externality
Definition
Third Party suffers a cost
Term
just like monopolies- if we have externalities- the government can step in
Definition
they lower the cost to get you to buy it- and they subsidized it
Term
Equity
Definition
-Fairness
- the good news is that markets are usually fair
Term
Trade- off
Definition
in order to get one thing you have to give something up
Term
Opportunity costs
Definition
the value of the next best alternative that is given up when a choice is made
-your original decision is the opportunity cost even though you don't have the option now of that decision
Term
Positive Economics
Definition
-Attempts to describe the world as it is
-includes economic theories of how the world works, not universally accepted theories but if its wrong it doesn't mean that it's not accepted.
-this can be tested
Term
Normative Economics
Definition
-what ought to be
-descriptions of your vision of an ideal world
-requires value judgement
-is an opinion
Term
any economic policy making must include positive and normative economics
Definition
-you must consider the consequences
-policy making requires both
Term
Micro economics-
Definition
-Small
-focuses on decisions of individual consumers and firms
Term
Macro Economics
Definition
- the big picture
- how the economy as a whole works
Term
Economic Models
Definition
-simplification of the real world that eliminates unwanted detail in order to focus on what is really important
-people get bogged down by details
-use the point to get your vision across
Term
PPF
Definition
Production Possibilities Frontier
Term
with a PPF we can make Two assumptions
Definition
1. Economy Produces two goods
-with this assumption in mind the PPF will show the Maximum qty of two goods the economy is capable of producing given resources and tech.
- we Can use PPF's to describe efficiency.
-If every point on the PPF is efficient, the point inside the PPF is insufficient or wasteful
- the point outside the PPF is impossible
Term
The law of Demand
Definition
as the price of a good or service goes up the qty demanded goes down
Term
Substitution
Definition
as the price of a given good increases consumers will substitute other goods whose price has not increased
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