Price above equilibrium disrupts balance in specific markets

Steps:

• Identify equilibrium as intersection of supply and demand at price P and quantity at point E.
• If price exceeds P, quantity supplied exceeds quantity demanded, creating surplus.
• In competitive markets, price adjusts downward to restore equilibrium at E.
• In non-competitive markets like monopoly, fixed price above P prevents reaching E.

Why A is correct:

• Option A depicts a monopsony market, where buyer power sets price above P, leading to underproduction and no equilibrium at E per marginal revenue product law.

Why the others are wrong:

• B: Perfect competition adjusts price to P, achieving E.
• C: Oligopoly may collude but still converges to E over time.
• D: Monopolistic competition has entry/exit driving price to P and E.

Final answer: A