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Econ Exam 1
various topics
86
Economics
Undergraduate 1
02/17/2010

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Term
model
Definition
a simplified representation of a real situation that is used to better understand real-life situations
Term
other things equal assumption
Definition
all other relevant factors remain unchanged
Term
production possibility frontier
Definition
illustrates the trade-offs facing an economy that produces only two goods. Its shows the maximun quantity of one good that can be produced for any given quantity produced of the other
Term
factors of production
Definition
resources used to produce goods and servies
Term
technology
Definition
technical means for producing goods and services
Term
comparative advantage
Definition
an individual has this when they produce a good or service if the opportunity cost of producing the good or service is lower for that individual than for other people
Term
absolute advantage
Definition
an individual has this if he or she can do it better than other people. having this is not the same thing as having a comparative advantage
Term
barter
Definition
when people directly exchange goods or services that they have for goods or services they want
Term
circular flow diagram
Definition
represents the transactions of an economy by flows around a circle
Term
household
Definition
a person or group of people that share their income
Term
firm
Definition
an organization that produces goods and servies for sale
Term
factor markets
Definition
where firms buy the resources they need to produce goods and services
Term
income distribution
Definition
the way in which the total income of an economy is divided among the owners of the various factors of production
Term
positive economics
Definition
the branch of economic analysis that describes the way in which the economy actually works
Term
normative economics
Definition
makes prescriptions about the way the economy should work
Term
forecast
Definition
a simple prediction of the future
Term
competitive market
Definition
is a market in which there are many buyers and sellers of the same good or service none of whom can influence the price at which the supply or service is sold
Term
supply and demand model
Definition
a model of how a competitive market works
Term
demand schedule
Definition
shows how much of a good or service consumers will want to buy at different prices
Term
quantity demanded
Definition
the actual amount of a good or service consumers are willing to buy at some specific price
Term
demand curve
Definition
a graphical representation of the demand schedule. it shows the relationship between quantity demanded and price
Term
law of demand
Definition
says that a higher price for a good or service, other things equal, leads people to demand a smaller quantity of that good or service
Term
shift of the demand curve
Definition
a change in the quantity demanded at any given price, represented by the change of the original demand curve to a new position, demanded by a new demand curve
Term
movement along the demand curve
Definition
a change in the quantity demanded of a good that is the result of a change in that goods price
Term
movement along the demand curve
Definition
a change in the quantity demanded of a good that is the result of a change in that goods price
Term
substitutes
Definition
when the price of one of the goods leads to an increase in the demand for the other good
Term
complements
Definition
if a rise in price of one good leads to a decrease in the demand for the other good
Term
normal good
Definition
when a rise in income increases the demand of a good
Term
inferior good
Definition
when a rise in income decreased the demand for a good
Term
individual demand curve
Definition
illustrates the relationship between quantity demanded and price for an individual consumer
Term
quantity supplied
Definition
the actual amount of a good or service producers are willing to sell at some specific price
Term
supply schedule
Definition
shows how much of a good or service producers will supply at different prices
Term
supply curve
Definition
shows the relationship between quantity supplied and price
Term
shift of the supply curve
Definition
a change in the quantity supplied of a good or service at any given price. Its is represented by the change of the original supply curve to a new position, denoted by the new supply curce
Term
movement along the supply curve
Definition
a change in the quantity supplied of a good that is the result of a change in that good's price
Term
input
Definition
a good or service that is used to produce another good or service
Term
individual supply curve
Definition
illustrates the relationship between quantity supplied and price for an individual producer
Term
equalibrium price
Definition
the price at which price has moved to a level at which the quantity of a good or service demanded equals the quantity of that good or service supplied
Term
equilibrium price
Definition
the price at which price has moved to a level at which the quantity of a good or service demanded equals the quantity of that good or service supplied
Term
equilibrium quantity
Definition
quantity at which a good or service is bought and sold at the equilibrium price
Term
surplus
Definition
when the quantity supplied exceeds the quantity demanded. Surpluses occur when the price is above the equalibrium level
Term
shortage
Definition
when the quantity demanded exceeds the quantity supplied. These occur when the price is below its equilibrium level
Term
willingness to pay
Definition
the maximum price at which he or she would by a good
Term
individual consumer surplus
Definition
the net gain to an individual buyer from the purchase of a good. It is equal to the difference between the buyers willingness to pay and the price paid
Term
total consumer surplus
Definition
the sum of individual consumer surpluses of all the buyers of a good in a market
Term
consumer surplus
Definition
often used to refer to both individual and to total consumer surplus
Term
cost
Definition
the lowest price at which he or she is willing to sell a good
Term
individual producer surplus
Definition
the net gain to an individual seller from selling a good. it is equal to the difference between the price received and the sellers cost.
Term
total producer surplus
Definition
the sum of the individual producer surpluses of all the sellers of a good in the market
Term
producer surplus
Definition
refers to both individual and total producer surplus
Term
total surplus
Definition
the total net gain to consumers and producers from trading in the market. it is the sum of the producer and the consumer surplus
Term
property rights
Definition
the rights of owners of valuable items, whether resources or goods, to dispose of those items as they choose
Term
economic signal
Definition
any piece of information that helps people make better economic decisions
Term
inefficient market / economy
Definition
when there are missed opportunities ; some people could be better off with without making other people worse off
Term
market failure
Definition
when a market fails to be efficient
Term
price controls
Definition
legal restrictions on how high or low a market price may go
Term
price ceiling
Definition
a maximum price sellers are allowed to charge for a good or service
Term
price floor
Definition
minimum price buys are required to pay for a good or service
Term
deadweight loss
Definition
the loss in total surplus that occurs whenever an action or a policy reduces the quantity transacted below the efficient market equilibrium quantity
Term
inefficient allocation to consumers
Definition
price ceilings often lead to this; people who want the good badly and are willing to pay a high price dont get it, and those who are relatively little about the good are only willing to pay a low price to get it
Term
wasted resources
Definition
price ceilings lead to this; people expend money, effort and time to cope with the shortages caused by the price ceiling
Term
inefficiently low quality
Definition
price ceilings lead to this; sellers offer low- quality goods at a low price even though buyers would prefer a higher quality at a higher price
Term
black market
Definition
a market in which goods or services are bought and sold illegally - either because it is illegal to sell them at all or because the prices charged are legally prohibited by a price ceiling
Term
minimum wage
Definition
legal floor on the wage rate, market price of labor
Term
quality control or quota
Definition
an upper limit on the quantity of some good that can be bought or sold
Term
quota limit
Definition
the total amount of a good that can be legally transacted
Term
license
Definition
gives its owner the right to supply a good
Term
demand price
Definition
the price at which consumers will demand that quantity
Term
supply price
Definition
the price at which consumers will supply that quantity
Term
wedge
Definition
created by a quota, it is between the demand price and the supply price of a good; that is, the price paid by buyers ends of being higher than that recieved by sellers.
Term
quota rent
Definition
the difference between the demand and supply price at the quota limit
Term
price elasticity of demand
Definition
the ratio of the percent change in the quantity demanded to the percent change in the price as we move along the demand curve (dropping the minus sign)
Term
midpoint method
Definition
a technique for calculating the percent change. in this approach we calculate changes in variable compared with the average or midpoint of the starting and final values
Term
perfectly inelastic
Definition
when the quantity demanded does not respond at all to changes in the price. when the demand is inelastic the demand curve is a vertical line
Term
perfectly elastic
Definition
when any price increase will cause the quantity demanded to drop to zero. when the demand is perfectly elastic the demand curve is a horizontal line
Term
elastic
Definition
if the price elasticity of demand is more than 1
Term
inelastic
Definition
if the price elasticity of demand is less than 1
Term
unit elastic
Definition
if the price elasticity of demand is 1
Term
total revenue
Definition
the total value of sales of a good or service. it is equal to the price multiplied by the quantity sold
Term
cross price elasticity of demand
Definition
measures the effect of the change in one goods price on the quantity demanded of the other good. it is equal to the percent change in the quantity demanded of one good divided by the percent change in the other good's price
Term
income elasticity of demand
Definition
the percent change in the quantity of a good demanded when a consumers income changes divided by the percent change in the consumers income
Term
income elastic
Definition
if the income elasticity of demand for that good is greater than 1
Term
income inelastic
Definition
if the income elasticity of demand for that good is positive but less than one
Term
price elasticity
Definition
a measure of the responsiveness of the quantity of a good supplied to the price of that good. it is the ratio of the percent change in the quantity supplied to the percent change in the price as we move along the supply curve
Term
perfectly inelastic supply
Definition
when the price elasticity of supply is zero, so that changes in the price of the good have no effect on the quantity supplied. a perfectly inelastic supply curve is a vertical line
Term
perfectly elastic supply curve
Definition
when even a tiny increase or reduction in price will lead to a very large change in the quantity supplied so that the price elasticity of supply is infinite. a perfectly elastic supply curve is a horizontal line
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