chapter 2 (CASA): the basic of supply and demand Flashcards
what does the supply curve demonstrate?
The relationship between the quantity of a good that producers are willing to sell and the price of the good
all other supply-determining factors (e.g., wages, interest charges, raw material costs, etc.) remain constant
QS = QS(P)
how is the shape of supply curve? why?
The Supply Curve slopes upward
at higher prices, more firms are able and willing to increase output
what happens to the supply curve when there is lower production costs? what does this ultimately mean?
the entire supply curve shifts to the right
there is greater quantity supplied at the same price, or same quantity supplied at a lower price
what happens to the supply curve when there is higher production costs? what does this ultimately mean?
the entire supply curve shifts to the left
there is lower quantity supplied at the same price, or same quantity supplied at a higher price
what determines change in Quantity supplied?
price changes (movement along the supply curve)
Changes in supply determining factors (shift of the supply curve)
what does the demand curve demonstrate?
The relationship between the quantity of a good that consumers are willing to buy and the price of the good
holding other demand-determining factors (e.g., incomes, tastes, weather, prices of substitute and complementary goods, etc.) constant
QD = QD(P)
what is the shape of the demand curve? what does this mean?
The Demand Curve slopes downward
it demonstrates that less consumers are able and willing to buy at a higher price
what would happen to the demand curve if consumer income increase? what does this mean?
the entire demand curve shifts to the right
it means greater quantity demanded at the same price, or same quantity demanded at a higher price
what would happen to the demand curve if consumer income decrease? what does this mean?
the entire demand curve shifts to the left
it means lower quantity demanded at the same price, or same quantity demanded at a lower price
what determines change in Quantity demanded?
Price change (movement along the demand curve)
Changes in demand-determining factors (shift of the demand curve)
what is the equilibrium price?
QD = QS
market-clearing price
what is the goal of a free market?
to reach the equilibrium price
in a graph, where do the graphs to demonstrate equilibrium?
wherever the supply and demand curves intersect
how do we know there is a market surplus?
Market price > equilibrium
QS > QD
how does a free market react after realizing the is a market surplus?
Downward pressure on price,
P1 falls to P0
QD increases and QS decreases
Market adjusts to equilibrium
how do we know there is a market shortage?
Market price < equilibrium
QD > QS
how does a free market react after realizing the is a market shortage?
Upward pressure on price,
P1 rises to P0
QD decreases and QS increases
Market adjusts to equilibrium
what determines the market clearing price in a free market?
S and D interact to determine the market-clearing price
what happens when there is no equilibrium?
the market will adjust to alleviate a shortage or
surplus and return the market to equilibrium