CR Weaken

[Solution] The difference in average annual income in favor of employees who have college degrees

Question The difference in average annual income in favor of employees who have college degrees, compared with those who do not have such degrees, doubled between 1980 and 1990. Some analysts have hypothesized that increased competition between employers for employees with college degrees drove up income for such employees. Which of the following, if true, …

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[Solution] In countries in which new-life sustaining drugs cannot be patented

Question In countries in which new-life sustaining drugs cannot be patented, such drugs are sold at widely affordable prices; those same drugs, where patented, command premium prices because the patents shield patent-holding company from competitors. These facts show that future access to new life sustaining drugs can be improved if the practice of granting patents …

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In a certain rural area, people normally dispose of household garbage by burning it

In a certain rural area, people normally dispose of household garbage by burning it. Burning household garbage releases toxic chemicals known as dioxins. New conservation regulations will require a major reduction in packaging—specifically, paper and cardboard packaging—for products sold in the area. Since such packaging materials contain dioxins, one result of the implementation of the new regulations will surely be a reduction in dioxin pollution in the area.

Kayla: Many people are reluctant to shop in our neighborhood because street parking is scarce.

Kayla: Many people are reluctant to shop in our neighborhood because street parking is scarce. The city plans to address this by adding parking meters with time limits that ensure that parking spaces are generally available. But this plan will surely backfire—shoppers dislike paying at parking meters, so most will probably drive to other neighborhoods to shop at malls with free parking.

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