8) in the short run, which of the following statements is correct?
a.the marginal cost curve intersects the average variable and average fixed cost curves
at their minimum points.
b.average variable cost declines continuously as total output is expanded.
c.total cost will exceed variable cost.
d.if the inputs of all resources are increased by equal amounts, total output will expand
by diminishing amounts.
9) in 2007 the price of oil increased, which in turn caused the price of natural gas to
rise. this can best be explained by saying that oil and natural gas are:
a.complementary goods and the higher price for oil increased the demand for natural
gas.
b.substitute goods and the higher price for oil increased the demand for natural gas.
c.complementary goods and the higher price for oil decreased the supply of natural gas.
d.substitute goods and the higher price for oil decreased the supply of natural gas.
10) Minimum-wage legislation is less likely to have adverse effects on employment
when the:
A.affected labor market is monopsonistic.
B.economy has high unemployment.
C.derived demand for labor is shifting to the left.
D.affected labor market is perfectly competitive.
11) which of the following statements is true?
a.microeconomics focuses on specific decision-making units of the economy;
macroeconomics examines the economy as a whole.
b.macroeconomics focuses on specific decision-making units of the economy;
microeconomics examines the economy as a whole.
c.every topic in economics is either a microeconomic or a macroeconomic issue; a topic
cannot be both.
d.topics in microeconomics have public policy implications; topics in macroeconomics
do not.