374 Thinking Like an Economist
7. Sometimes economists disagree because their values differ. Which of the following instances best
reflects this source of disagreement?
a. One economist believes the North American Free Trade Agreement (NAFTA) has led to a loss
of American jobs; another economist disputes this claim.
b. One economist believes that when income taxes are cut, people will increase their spending;
another economist believes that when income taxes are cut, people will increase their saving.
c. One economist advises against increases in sales taxes because she thinks such increases are
unfair to low– income people; another economist disputes the idea that increases in sales taxes
are unfair to low-income people.
d. One economist believes that, prior to the Civil War, slavery contributed to economic growth in the
South; another economist believes that slavery held back the South‘s economic growth.
8. Joe and Fred are economists. Joe thinks that the wealthiest 10% of the US population should be
taxed a rate higher than the rest of society because they can better afford it. Fred thinks that
everyone should be taxed at the same rate because that is the fairest scenario and the wealthy
should not be penalized for their success. In this example, Joe and Fred
a. disagree about the validity of a positive theory.
b. have different normative views about tax policy.
c. must both be incorrect because tax policy is never that simple.
d. None of the above is correct.