Price Rationing via Consumer Choice Signals

Steps:

• Define rationing function: prices allocate scarce resources by reflecting consumer choices on demand.
• Link consumer choice to price changes: low demand from choices lowers price, signaling inefficiency.
• Assess options: identify which shows price guiding resource allocation through producer response to consumer-driven signals.
• Select B: it demonstrates rationing by shifting resources based on weak consumer preference.

Why B is correct:

• Rationing function relies on price signals from consumer demand; a fall indicates low willingness to pay, prompting producers to exit per the law of supply, reallocating resources efficiently.

Why the others are wrong:

• A: Signals popularity but does not show rationing of resources via choice.
• C: Highlights affordability limit for consumers but ignores producer-side allocation.
• D: Notes competitiveness drop but overlooks consumer choice in driving rationing.

Final answer: B