Moderate

Suppose there is an increase in both the supply and demand for personal computers. In the market for personal computers, we would expect?

Correct answer: E. the equilibrium quantity to rise and the change in the equilibrium price to be ambiguous.

  • A. the equilibrium quantity to rise and the equilibrium price to rise
  • B. the equilibrium quantity to rise and the equilibrium price to fall
  • C. the equilibrium quantity to rise and the equilibrium price to remain constant
  • D. the change in the equilibrium quantity to be ambiguous and the equilibrium price to rise
  • E. the equilibrium quantity to rise and the change in the equilibrium price to be ambiguous.

Explanation

An increase in both demand and supply raises the equilibrium quantity because both shifts push quantity upward. Their effects on price oppose each other, so the equilibrium price is ambiguous.

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Individual consumers, firms and markets are examined through demand and supply, elasticity, consumer choice, production, costs, revenue and the determination of prices and output. The topic also covers market structures such as perfect competition, monopoly and oligopoly, plus market failure, externalities and the distinction between microeconomic decisions and economy-wide outcomes.

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