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Chapter Three:Supply/Demand
Supply and Demand
34
Economics
Undergraduate 1
10/18/2007

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Term
Aggregation
Definition
The process of combinging distinct thinks into a single whole
Term
Imperefectly Competative market
Definition
A market in which a single biyer or seller has the power to influence the price of the product
Term

Perfectly competative market

Definition
A market in which no buyer/seller has any power over price
Term
Households quantity demanded
Definition
The specific amount a household would chose to buy over some time period, given (1) a particular price, (2) all other contraints on the household
Term
Quantity Demand
Definition
The amount of a good that all buyers in a market would choose to buy during a period of time guven their constraints
Term
Law of Demand
Definition

As the price increases the quanity demanded decresases

Term
Ceteris paribus
Definition
LAtin fot "all else remain equal"
Term
Demand schedual
Definition
A list showing the quantities of a goood that consumers would choose to purchase at difference prices with all other variables held constand
Term
Demand Curve
Definition
The graphical depictionn of a demand scedual: a curve showing the quantity of a good or service demanded at vairous prices with all other cariable held constant
Term
Change in Quanity Demanded
Definition
A movement along a demand curve in response to a change in price
Term
Change in demand
Definition
A shift of a demand curve in response to a change in some variable other than price
Term
Income
Definition
The amount of money that a perosn or firm earns over a given year
Term
Normal good
Definition
A good that people demand more of as theri income rises
Term
Inferior Good
Definition
A good that people demand less of as theri income rises
Term
Wealth
Definition
The total value of everything a person or firm owns, at a point in time, minus the total value of everthing owed
Term
Substitue
Definition
A good that can be used in place of some other good and that fulfuills the same purpose
Term
Complement
Definition
a good that is used together with some other good
Term
Law of Supply
Definition
As the price of a good increases, the quanity supplied increases
Term
Supply Schedule
Definition
A list showing the quantities of a good or service that firms woudl choose to produce and sell at different pruices with all other things equal
Term
Supply curve
Definition
A graphical depiction of a supply scdual, a curve showing the quantiy of a good/service supplied at various prices withh all other variables held constant
Term
Change in quanity supplied
Definition
A movemetn aling a supply curve in response to a change in price
Term
Change in supply
Definition
A shift of a supply curve in response to some variable other than price
Term
Alternate goods
Definition
Other goods that a firm could produce, using some of the same types of inputs as the good in question
Term
Alternate market
Definition
A market other than the one being analyed in which the same good could be sold
Term

Equilibrium price

Definition
The market price that one achienved remains constnt unil either the demand curve or supply curve shifts
Term
Equilibrium quantity
Definition
The market quality bought and sold per period that, once anchieved remains constant unit either the demand curve or supply curve shifts
Term
Excess demand
Definition
As a given price the amount by which quantiy demanded exceed quantiy supplied
Term
Excess Supply
Definition
At a given price the amount by which quanitity supplied exceeds quantity demanded
Term
Economic growth
Definition
The Increase in our production of goods and services that occurs over long periods of time
Term
Business cycle
Definition
Flucations in real GDP around its long-term growth trend
Term
Expansion
Definition
A period of increasing real GDP
Term
Recession
Definition
A period of increasing real GDP
Term
Depression
Definition
An unusually severe
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