Economist: The wages of many of the lowest-paid corporate employees in this country would be protected from cuts by enacting a maximum wage law that prohibits executives at any corporation from earning more than, say, 50 times what the corporation’s lowest-paid employees in this country earn. Currently, some executives try to increase corporate profits—and their own salaries—by cutting the pay and benefits of their corporations’ employees. A maximum wage law would remove this incentive for these executives to cut the wages of their lowest-paid employees.
Analysis: This is a "plan and outcome" type of question.
Current situation - in order to maximize the profits and their own salaries, some executives cut down the wages of lowest-paid employees
Plan - A limit of, let's say, x50 will be put on the salary of the executives
Outcome - the salary of the lowest-paid employees will not be cut
Which one of the following is an assumption the economist’s argument requires?
We need to find the assumption.
A. All of the lowest-paid corporate employees in the economist’s country are employed at corporations at which the executives earn more than 50 times what the corporations’ lowest-paid employees in the economist’s country earn.
Negation: At least 1 lowest-paid corporate employee is employed at a corporation in which the executive earns >50x the lowest-paid employee
Analysis:
B. Some corporate executives who cut the pay of their corporations’ lowest-paid employees in the economist’s country in order to increase their own salaries already earn less than 50 times what their corporations’ lowest-paid employees in the economist’s country earn.
Well, if the executives already earn less than 50x the lowest salary, then putting a cap on a higher limit would not impact the company's decision. The company's executives could still cut the salaries of lowest-paid employees to increase or maintain the salaries of the excutives
C. No corporate executives in the economist’s country would raise the wages of their corporations’ lowest-paid employees in the economist’s country unless such a maximum wage law linked executive wages to those of their corporations’ lowest-paid employees in the economist’s country.
Negation: At least 1 corporate executive will increase the wage of the lowest-paid employees even if the new law is not enacted.
This is not necessary for the argument to hold true. The argument speaks about the impact after enacting the law
D. If corporate executives could not increase their own salaries by cutting the pay and benefits of their corporations’ lowest-paid employees in the economist’s country, they would never change the wages of those employees.
This is a sufficient, but not necessary condition. This provides support to the argument that the executives cut the salaries of the lowest-paid employees to pay for their own salaries
E. If such a maximum wage law were enacted in the economist’s country, one or more corporate executives would not cut the pay and benefits of their corporations’ lowest-paid employees in the economist’s country.
Negation: If such a law is enacted, at least one executive would cut the pay of the lowest-paid employees.
Banger! If the negation holds true, our outcome is not achieved.
Therefore,
the correct answer is E.