medium · SAT Reading & Writing

While many economists argue that high taxes on luxury goods discourage spending and harm the economy, some researchers suggest that such taxes can serve as effective 'automatic stabilizers.' ⟪By reducing the purchasing power of the wealthiest consumers during periods of rapid inflation, these taxes may help to prevent the economy from overheating.⟫ This suggests that the impact of luxury taxes depends heavily on the broader economic context in which they are applied. Which choice best describes the function of the underlined sentence as a whole?

1. It proves that the economy will always overheat without high taxes on luxury goods.
2. It provides evidence that high taxes are the primary cause of economic inflation.
3. It explains a potential benefit of a policy that was criticized earlier.
4. It concedes that luxury taxes reduce the purchasing power of the wealthiest consumers.

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