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ch 1-3
review
56
Economics
Undergraduate 3
12/06/2008

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Term
scarcity
Definition
the resources we use to produce goods and services are limited
Term
economics
Definition
the study of choices when there is scarcity
Term
factors of production
Definition
the resources used to produce goods and services; also known as production inputs
Term
natural resources
Definition
resources provided by nature and used to produce goods and services
Term
labor
Definition
the physical and mental effort people use to produce goods and services
Term
physical capital
Definition
the stock of equipment, machines, structures, and infrastructure that is used to produce goods and services
Term
human capital
Definition
the knowledge and skills acquired by a worker through education and experience
Term
entrepreneurship
Definition
the effort used to coordinate the factors of production-natural resources, labor, physical capital, and human capital- to produce and sell products.
Term
positive analysis
Definition
answers the question "what is?" or "what will be"
Term
normative analysis
Definition
answers the question "what ought to be"
Term
economic model
Definition
a simplified representation of an economic environment, often employing a graph
Term
variable
Definition
a measure of something that can take on different values
Term
ceteris paribus
Definition
latin expression meaning other variables being held fixed
Term
marginal change
Definition
a small, one unit change in value
Term
macroeconomics
Definition
the study of the nation's economy as a whole; focuses on the issues of inflation, unempolyment, and economic growth
Term
microeconomics
Definition
the study of the choices made by households, firms, and government and how these choices affect the markets for goods and services
Term
positive relationship
Definition
a relationship on which two variables move in the same direction
Term
negative relationship
Definition
a relationship in which two variables move in opposite directions
Term
slope of a curve
Definition
the vertical difference between two points (rise) divided by the horizontal difference (run)
Term
opportunity cost
Definition
what you sacrifice to get something
Term
production possibilities curve
Definition
a curve that shoes the possible combinations of products that an ecomony can produce, givien that is productive resources are fully employed and efficiently used
Term
marginal benefit
Definition
the additional benefit resulting from a small increase in some activity
Term
marginal cost
Definition
the additional cost resulting from a small increase in some activity
Term
principle of opportunity cost
Definition
the opportunity cost of something is what you sacrifice to get it
Term
marginal principle
Definition
increase the level of an activity as long as its marginal benefit exceeds its marginal cost. choose the level at which the marginal benefit equals the marginal cost
Term
principle of voluntary exchange
Definition
a voluntary exchange between two people makes both people better off.
Term
principle of diminishing return
Definition
suppose output is producted with two or more inputs and we increase one input while holding the other input(s) fixed. beyond some point called the point of diminishing returns output will increase as a decresing rate.
Term
real nominal principle
Definition
what matters to people is the real value of money or income its purchasing power not the "face" value of money or income.
Term
nominal value
Definition
the face value of an amount of money
Term
real value
Definition
the value of an amount of money in terms or what it can buy
Term
perfectly competitive market
Definition
a market with so many buyers and sellers that no simgle buyer or seller can affect the market price
Term
quantity demanded
Definition
the amount of a product that consumers are willing and able to buy
Term
quantity demanded
Definition
the amount of a product that consumers are willing and able to buy
Term
demand schedule
Definition
a table that shows the relationship between the price of a product and the quantity demanded, ceteris paribus
Term
individual demand curve
Definition
a curve that shows the relationship between the price of a good and quantity demanded by an individual consumer, ceteris paribus
Term
law of demand
Definition
there is a negative relationship between price and quantity demanded, ceteris paribus
Term
change in quantity demanded
Definition
a change in the quantity consumers are willing and able to buy when the price changes; represented graphically by movement along the demand curve
Term
change in quantity demanded
Definition
a change in the quantity consumers are willing and able to buy when the price changes; represented graphically by movement along the demand curve
Term
market demand curve
Definition
a curve showing the relationship between price and quantity demanded by all consumers, ceteris paribus
Term
quantity supplied
Definition
the amount of a product that firms are willing and able to sell
Term
supply schedule
Definition
a table that shows the relationship between the price of a product and quantity supplied, ceteris paribus
Term
individual supply curve
Definition
a curve showing the relatinsip between price and quantity supplied by a single firm,ceteris paribus
Term
change in quantity supplied
Definition
a change in the quantity firms are willing and able to sell when the price changes; represented graphically by movement along the supply curve
Term
minimum supply price
Definition
the lowest price at which a product will be supplied
Term
market supply curve
Definition
a curve showing the relationship between the market price and quantity supplies by all firms, ceteris paribus
Term
marginal principle
Definition
increase the level of an activity as long as its marginal benefit exceeds its marginal cost. choose the level at which the marginal benefit equals the marginal cost
Term
market supply curve
Definition
a curve showing the relaitonship between the market price and quantity supplied by all firms ceteris paribus
Term
market equilibrium
Definition
a situation in which the quantity demanded equals the quantity supplies at the prevailing market price
Term
excess demand (shortage)
Definition
a situation in which at the prvailing price the quantity demanded exceeds the quantity supplied
Term
excess supply (surplus)
Definition
a situation in which at the prvailing price the quantity supplied exceeds the quantity demanded
Term
change in demand
Definition
a shift of the demand curve caused by a change in a variable other than the price of the product
Term
normal good
Definition
a good for which an increase in income increases demand
Term
inferior good
Definition
a good for which an incrase in income decreases demanded
Term
substitutes
Definition
two goods for which an increase in the price of one good increases the demand for the other good
Term
complements
Definition
two goods wfor which a decrease in the price of one good increases the demand for the other good
Term
change in supply
Definition
a shift of the supply curve caused by a change in a variable other than the price of the product
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