Institutions in Market Economies Rely on Private Enterprise

Steps:

• Recall that a market economy features private ownership, profit motives, and competition via supply and demand.
• Evaluate each option for pairs of institutions primarily driven by private sector activities.
• Eliminate pairs including government-controlled or non-profit entities, which align more with mixed or command economies.
• Confirm the pair consisting of profit-oriented, privately operated institutions.

Why B is correct:

• Monopolies and commercial banks are private entities pursuing profit; banks provide market financing, while monopolies represent extreme market structures under antitrust laws like the Sherman Act.

Why the others are wrong:

• A: Local government is publicly funded; charities operate on donations, not market competition.
• C: Nationalised industries are state-owned, contradicting private enterprise in market economies.
• D: Public corporations are government-run, not privately traded like stock exchanges.

Final answer: B