How do price changes drive markets toward equilibrium?
a. They set new price floors and ceilings.
b. They increase or decrease supply or demand.
c. They ensure that prices are fair.
d. They prevent inflation or deflation.
Which is a real-life example of a market that is close to perfect competition?
a. a computer monopoly
b. an oil and gas cartel
c. a farmers’ market
d. a public school system