3. The author’s argument about current economic policy would most clearly be undermined if which of the following occurred?The author argues that policies encouraging household savings are harmful because greater household savings reduce consumer spending, which hurts business sales, savings, and investment.
The argument would therefore be undermined most directly by evidence that household savings can increase without hurting business savings.(A) Household incomes increased as business investment increased.
Incorrect. This supports the author’s claim that
greater business investment can lead to higher household incomes.
(B) The business and the household savings rates each increased significantly.
Correct. This most directly challenges the author’s claim that increased household savings have an adverse effect on business savings. If both household savings and business savings increased significantly, that would provide evidence against the claimed negative relationship between them.
(C) The business savings rate grew, while the household savings rate declined.
Incorrect. This is consistent with the author’s argument that lower household savings can be associated with stronger business savings.
(D) Investment in plants and equipment doubled even though interest rates were high.
Incorrect. The author’s argument is not that high interest rates prevent investment or that business investment must decline in absolute terms. The claim is that increased household savings cause businesses to invest less than they otherwise would. Even if investment doubled, it could still have been curtailed; without the effect of increased household savings, it might have increased even more. Moreover, (D) tells us nothing about household savings, so it does not directly challenge the relationship at the center of the argument.
(E) The household proportion of national savings remained constant, while total national savings declined.
Incorrect. This does not show whether increased household savings hurt business savings or investment.
Answer: (B)