Difficulty: Hard

Average Score: 33%

When consumer demand and firm supply both rise, equilibrium price ...

Rationale

When consumer demand and firm supply both rise, equilibrium price is indeterminate while quantity increases.

An increase in consumer demand typically raises prices, while an increase in supply generally lowers prices. However, when both demand and supply rise simultaneously, the overall effect on equilibrium price becomes uncertain, but the quantity will definitely increase as more goods are available and more consumers want to purchase them.

A (Price up; quantity down) YOUR ANSWER

This option suggests that an increase in both demand and supply results in a higher price and a lower quantity. However, this contradicts the basic principles of supply and demand: if both increase, quantity will rise, not fall.

B (Price up; quantity indeterminate) YOUR ANSWER

While it's true that an increase in demand can lift prices, this choice overlooks the simultaneous increase in supply, which exerts downward pressure on prices. Thus, the overall effect on price remains indeterminate, but quantity would still rise due to increased supply and demand.

D (Price indeterminate; quantity down) YOUR ANSWER

This statement incorrectly claims that quantity would decrease. In reality, both rising demand and supply ensure an increase in quantity available in the market. Therefore, quantity cannot decrease when both factors are rising.

Conclusion

In a scenario where both consumer demand and firm supply increase, the equilibrium price remains indeterminate due to opposing pressures: rising prices from demand and falling prices from supply. However, the quantity of goods in the market will assuredly increase, reflecting higher availability and greater consumer appetite. Understanding this dynamic is vital for analyzing market behavior and predicting responses to changes in economic conditions.

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