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Intro to Econ
exam 1 study cards
69
Economics
Undergraduate 1
03/06/2011

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Term
WHAT IS ECONOMICS?
Definition
1. A theory of choice and its unintended consequences
2. A way of thinking about actions, interactions, and consequences.
Term
SOCIAL COOPERATION
Definition
1. It's usually spontaneous / no central direction
2. Achieved through mutual interactions
Term
RULES OF THE GAME
Definition
1. Affect Incentives
2. Are property rights
Term
SCARCITY
Definition
A condition under which an individual must choose/sacrifice/trade off to obtain more of what he or she wants.
Term
TRADE-OFF
Definition
If you want something, you have to sacrifice, or give up something else to get it.
Term
SPONTANEOUS COOPERATION
Definition
Social cooperation without any central direction
Term
MUTUAL ADJUSTMENT
Definition
A process of adjusting to the environment and others in the environment in order to achieve your goal with minimum c
Term
SUBJECTIVE VALUE
Definition
Different people value different things. Homer Simpson likes his steak. Lisa Simpson likes cows to be cute and alive.
Term
WEALTH
Definition
Anything that a person values.
Term
GAINS from TRADE
Definition
1. Trade makes us wealthier by getting stuff into the hands of people who value it more.
Term
OPPORTUNITY COSTS
Definition
The value of the next best opportunity that you sacrifice when making a decision.
Term
PRODUCTION POSSIBILITIES FRONTIER (PPF)
Definition
A graphical Representation of opportunity cost.
The X and Y axises are labeled as the quantity produced of products X and Y respectively.
Term
COMPARATIVE ADVANTAGE
Definition
The ability to produce something at a lower opportunity cost than someone else producing the same thing.
Term
TRANSACTION COSTS
Definition
All of the costs required to arrange contracts and agreements with trading partners.
Term
What two things expand both parties PPF?
Definition
Specializing and Trading
Term
MIDDLEMEN
Definition
Produce that scarce good that is information.
Term
SPECIALIZATION
Definition
Following your comparative advantage.
Term
NEEDS
Definition
1. Everyone has them--the question is not What are they? but How do we get them?
Term
SUBSTITUTES
Definition
If we can reach our goals using fewer resources, we'll do it. Think ramen.
Term
MARGINAL THINKING/ANALYSIS
Definition
Weighing expected additional benefits against expected additional costs.
Term
LAW OF DEMAND
Definition
1. The inverse relationship between price and quantity demanded. Not quantity. Quantity Demanded. As price goes up, Qd goes down, and vice versa.
Term
QUANTITY DEMANDED
Definition
Always refers to a relationship between a quantity and a price.
Term
DEMAND
Definition
Is a schedule/curve that covers a range of prices.
Term
DEMAND CURVE SHIFTERS
Definition
Things that are not price that change, and by doing so, change a demand curve.
A Change In...
1. Number of Consumers
2. Tastes and Preferences
3. Income
4. Price of Substitutes
5. Price of Complements
6. Expected Price of the good
Term
Demand curve Shifter #1
Definition
A Change in the NUMBER OF CONSUMERS
Term
Demand Curve Shifter #2
Definition
A change in TASTES AND PREFERENCES
Term
Demand Curve Shifter #3
Definition
A change in INCOME
Term
DEMAND CURVE SHIFTER # 4
Definition
A change in the PRICE OF SUBSTITUTES
Term
Demand curve Shifter #5
Definition
A change in the PRICE OF COMPLEMENTS
Term
Demand Curve Shifter #6
Definition
A change in the Expected Price of the Good
Term
PRICE ELASTICITY OF DEMAND
Definition
The Responsiveness of quantity demanded to changes in price
Term
PRICE ELASTICITY OF DEMAND formula
Definition
% Change in quantity demanded
_______________________________
% Change in Price
Term
Elastic Demand
Definition
Quantity demanded is very responsive to changes in price. When the final number is greater than one!
Term
Inelastic Demand
Definition
Quantity demanded is not very responsive to changes in price. When the number is less than one.
Term
RATIONING
Definition
Every Scarce Good Must Be Rationed!
-willingness to pay
-lottery
-first come, first served
-might makes right
etc.
Term
Describe the Midpoint Method
Definition
1. Find the percent change in Qd: The difference between the two numbers divided by the midpoint between the two numbers, multiplied by one hundred.
2. Find the percent change in price the same way.
3. Divide the percent change in quantity demanded by the percent change in price.
Term
When Demand is inelastic, price changes and revenue...
Definition
Move in the same direction.
Term
When demand is elastic, price changes and revenue changes...
Definition
move in opposite directions.
Term
SUNK COSTS
Definition
Unrecoverable costs.
Term
OPPORTUNITY COSTS ch.4
Definition
We care about the sacrifices we make when buying or producing things. The cost of resources used to produce things depends on their Alternative uses.
Term
PRODUCER'S COSTS AS OPPORTUNITY COSTS
Definition
The cost of producing one thing depends on the relative prices of Alternative Uses! Like, would a certain piece of land be better suited for growing corn than soybeans?
Term
SUPPLY CURVE
Definition
Show us the opportunity costs that must be covered to induce potential suppliers to make particular goods available. Slope UPWARD!
Term
At higher quantities of supply...
Definition
...you have to start using resources that are less suited to the particular product you are producing.
Term
WHAT SHIFTS A SUPPLY CURVE?
Definition
1. change in price of an alternate product
2. price of a production input changes
3. change in production technology
4. change in expectation of future prices.
5. change in number of suppliers.
Term
WHAT IS A MARKET?
Definition
A process of negotiations between buyers and sellers to coordinate their activities!
Term
SURPLUS
Definition
when there is more product supplied than demanded
Term
SHORTAGE
Definition
When there is more demand for a product than there is supply of a product.
Term
EQUILIBRIUM / MARKET CLEARING PRICE
Definition
1. The point at which supply and demand curves cross.
2. The price at which there is no shortage or surplus.
Term
Markets are a process by which...
Definition
buyers and sellers coordinate their plans
Term
Buyers compete against...
Definition
BUYERS!
Term
Sellers compete against...
Definition
SELLERS!
Term
BUYERS cooperate with...
Definition
SELLERS!
Term
SELLERS cooperate with...
Definition
BUYERS!
Term
PRICE CEILING
Definition
1. Legally established MAX price
2. Usually set below equilibrium price
Term
Price ceilings tend to increase NON-MONETARY COSTS like...
Definition
1. Waiting in line
2. Searching for Suppliers
3. In-kind payments
because PRICE CEILINGS CREATE SHORTAGES! and DISCOURAGE INNOVATION!
Term
PRICE FLOOR
Definition
1. Legally established minimum price
2. Set Above equilibrium price
Create surpluses, higher prices
Term
UNINTENDED CONSEQUENCES of price floors and ceilings
Definition
1. Create longer lines, higher prices, surpluses or shortages, discourage innovation, and DON'T SOLVE SCARCITY!
Term
ACCOUNTING PROFIT
Definition
Total Revenue - total Explicit Costs
Term
Explicit Costs
Definition
Direct monetary costs, like wages, rent, supplies, and advertising.
Term
ECONOMIC PROFIT
Definition
Total Revenue - Total Explicit Costs - Total Implicit (opportunity) costs = economic profit.
Term
IMPLICIT COSTS:
Definition
Include opportunity costs
Term
Out of ECONOMIC and ACCOUNTING profits, which of the two does not take into account opportunity/implicit costs?
Definition
Accounting Profit does not take into account opportunity costs.
Term
PROFIT IS...
Definition
Residual, not contractually guaranteed the same way wages, rent, and interest are, and it is necessarily risky.
Term
What roles do Profits play in society? (not the biblical kind.)
Definition
1. Incentive (if I serve others well, they will reward me)
2. Guide (profit shows me how people like to be served)
Term
ARBITRAGE
Definition
buy low, sell high.
Term
INNOVATE
Definition
New things / new ways of making things
Term
IMITATE
Definition
disseminate what is new.
Term
what is an ENTREPRENEUR? / What do they do?
Definition
Someone who tries to reorganize how we live...They create NEW KNOWLEDGE about what is valuable and who can create value.
Term
What allows for Entrepreneurship?
Definition
Open entry and exit / freedom to try and fail. The opportunity.
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