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Macro
Chap. 1
23
Economics
Undergraduate 1
07/11/2006

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Term
average benefit
Definition
the total benefits of n units of activity divided by n.
Term
average cost
Definition
the total cost of n units of activity divided by n
Term
economics
Definition
the study of how individuals make choices under conditions of scarcity and the resulting effects
Term
economic surplus
Definition
the difference between the benefits of taking the action and the cost of taking the action
Term
macroeconomics
Definition
the subfield of economics that concentrates on the performance of the national economy and the effects of governmental policies
Term
marginal benefits
Definition
the extra benefit experienced as a result of one unit increases in the amount of activity chosen.
Term
marginal cost
Definition
the extra cost experienced as a result of one unit increase in the amount of activity chosen
Term
microeconomics
Definition
the subfield of economics that concentrates on the behavior of individual markets
Term
normative economic principle
Definition
a principle that says how people should behave
Term
opportunity cost
Definition
the value of the next best alternative not selected
Term
positive economic principle
Definition
a principle that predicts how people will behave
Term
rational person
Definition
a person with well-defined goals and tries to achieve them
Term
sunk cost
Definition
cost that cannot be recovered regardless of the alternative chosen
Term
constant
Definition
a value in an equation that is fixed
Term
dependent variable
Definition
the variable that is caused by or is being determined in an equation
Term
equation
Definition
a mathematical statement of the relationship between two or more variables
Term
independent variable
Definition
the variable or variables that cause or determine the relationship in an equation
Term
rise
Definition
when calculating slop, the vertical distance a straight line travels between any two points
Term
rise
Definition
when calculating slope, the vertical distance a straight line travels between any two points
Term
run
Definition
when calculating slope, the horizontal distance a straight line travels between any two points
Term
slope
Definition
in a straight line, the ratio of the vertical distance to the corresponding horizontal distance between any two points
Term
variables
Definition
items thought to be related which can take on different numerical values
Term
vertical intercept
Definition
the value of the dependent variable when the value of the independent variable is zero
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