Exam 1 Material Flashcards
economics
study of rational choice under conditions of scarcity
scarcity
when people have more wants than what are freely available
rational choice
people make choices after comparing the benefits and costs
opportunity cost
the value of the next best alternative
positive economics
predictive and/or descriptive
normative
judgmental and/or evaluative
scientific method
ask questions, produce explanations, and form hypotheses
microeconomics
is the study of the decision-making process of individuals
macroeconomics
is the study of aggregate decision-making
nominal variables
measured in terms of dollars
real variables
measured in terms of goods and services
scatter diagram
collection of points showing the relationship between two variables
direct relationship
two variables that move in the same direction
positive slope
a line that has a direct relationship between the variables
formula for a linear relationship
y= a + b*x
rise over run
slope of a linear line
Demand
Behavior of consumers in a market
Determinants of Demand
price of the good, price of substitute goods, price of complementary goods, tastes and preferences, consumer’s income, and expectations about the future
Ceteris paribus (latin phrase)
all other things equal
Demand function
mathematical relationship that predicts the quantity of a good demanded as a function of several related variables
Qd=
D(P, Pc, Ps, M, Ta, Ex)
Normal good
Increase in income leads to an increase in demand
Inferior good
Increase in income leads to a decrease in demand
Tastes and Preferences
If tastes for a product change, demand for that product changes in the same direction
If prices are expected to rise in the future, demand will ____ today
increase
If future prices are expected to decrease, demand will ____ today
decrease
For a normal good, if income decreases then
demand will decrease
For an inferior good, if income decreases then
demand will increase
A demand schedule
a table showing the relationship between the price of a good and the quantity of the good demanded, ceteris paribus.
A demand curve
is a graph showing the relationship between the price of a good and the quantity of the good that consumers are willing and able to purchase in a given period of time, ceteris paribus.