The layouts of supermarkets are not accidental: they are part of a plan designed to make customers walk all the way to the back of the store just to pick up a loaf of bread, passing tempting displays the whole way. But supermarkets can alienate customers by placing popular items in the rear; surveys list inconvenience as shoppers’ top reason for disliking supermarkets.

Summary

Supermarkets are designed so that customers must walk to the back of the store to pick up a loaf of bread, passing tempting displays along the way. However, supermarkets can alienate customers by stocking popular items in the back of the store. Surveys indicate inconvenience is a top reason shoppers’ list for disliking supermarkets.

Strongly Supported Conclusions

Some strategies for manipulating people have unwanted consequences.

A
Supermarkets should focus on customers who want to purchase many items in a single trip.

This answer is unsupported. The stimulus does not make a value judgment in regards to what supermarkets should or should not do.

B
Alienation of customers is not good for business.

This answer is unsupported. We don’t know based on the stimulus if the strategy described is not good for business. It could be the case that, even if a customer dislikes a supermarket’s tactics, the customer returns and shops there anyway.

C
Even well-thought-out plans can fail.

This answer is unsupported. We don’t know whether the tactic described in the stimulus is a failure.

D
Distracting customers is not good for business.

This answer is unsupported. We don’t know based on the stimulus if the strategy described is not good for business. It could be the case that, even if a customer dislikes a supermarket’s tactics, the customer returns and shops there anyway.

E
Manipulation of people can have unwelcome consequences.

This answer is strongly supported. The supermarkets’ tactics can give rise to unwelcome consequences in the form of their customers feeling alienated.


20 comments

Many scientific studies have suggested that taking melatonin tablets can induce sleep. But this does not mean that melatonin is helpful in treating insomnia. Most of the studies examined only people without insomnia, and in many of the studies, only a few of the subjects given melatonin appeared to be significantly affected by it.

Summarize Argument
The author concludes that studies don’t necessarily indicate that melatonin helps people with insomnia. This is because few of the studies dealt with people with insomnia, and very people in the studies overall were significantly affected by melatonin.

Notable Assumptions
The author assumes that people with insomnia are categorically different than other people when it comes to falling asleep. If this wasn’t true, then insomniacs wouldn’t have to be included in the study for the study to work. The author also assumes that melatonin has to significantly help one fall asleep in order for melatonin to be helpful in treating insomnia.

A
A weaker correlation between taking melatonin and the inducement of sleep was found in the studies that included people with insomnia than in the studies that did not.
We have no idea if the weaker correlation actually featured people with insomnia. If it didn’t feature. those people, then this doesn’t strengthen the author’s argument.
B
None of the studies that suggested that taking melatonin tablets can induce sleep examined a fully representative sample of the human population.
We don’t need that sample to be fully representative. The author seems to think that sample simply has to represent or focus on people with insomnia.
C
In the studies that included subjects with insomnia, only subjects without insomnia were significantly affected by doses of melatonin.
When people with insomnia were included in the studies, they didn’t derive any great benefit from melatonin. This shows that melatonin isn’t terribly helpful for people with insomnia.
D
Several people who were in control groups and only given placebos claimed that the tablets induced sleep.
Irrelevant. We have no idea if these people had insomnia.
E
If melatonin were helpful in treating insomnia, then every person with insomnia who took doses of melatonin would appear to be significantly affected by it.
We don’t know if anyone who has insomnia was actually given melatonin in these studies.

41 comments

Economist: Although obviously cuts in personal income tax rates for the upper income brackets disproportionately benefit the wealthy, across-the-board cuts for all brackets tend to have a similar effect. Personal income tax rates are progressive (i.e., graduated), and if total revenue remains constant, then across-the-board cuts in these taxes require increasing the amount of revenue generated through nonprogressive taxes, thereby favoring the wealthy. Yet if nonprogressive taxes are not increased to compensate for the cuts, then the budget deficit will increase, requiring more government borrowing and driving up interest rates. This favors those who have money to lend, once again benefiting primarily the wealthy.

Summarize Argument
Tax cuts across all income brackets tend to benefit the wealthy. Why does this happen? To keep revenue the same, tax cuts on income require revenue to be generated with other, non-progressive taxes. Non-progressive taxes benefit the wealthy. Alternatively, if revenue is allowed to decrease, the budget deficit will increase. This means government borrowing will have to increase, which causes interest rates to increase. Increased interest rates also benefit the wealthy, because they have money to lend. Either result of across the board tax cuts ends up benefitting the wealthy.

Identify Conclusion
The conclusion is the authors claim that income taxes for all brackets disproportionately benefit the wealthy: “across-the-board cuts for all brackets tend to have a similar effect.”

A
Cuts in personal income tax rates for upper income brackets benefit the wealthy more than they benefit others.
This is context that sets up the authors argument about the results of across-the-board cuts for all brackets.
B
Across-the-board cuts in personal income tax rates do not generate enough additional economic activity to prevent a net loss of revenue.
This is not contained in the stimulus. There is no discussion of generating economic activity.
C
It is the wealthy who are favored by generating a high amount of revenue through nonprogressive taxes.
This is a premise that supports the claim that across the board tax cuts ultimately end up benefitting the wealthy. It shows how it occurs.
D
It is primarily the wealthy who benefit from increases in the budget deficit, which drive up interest rates.
This is another premise that supports the claim that across the board tax cuts ultimately end up benefitting the wealthy. It shows how it occurs.
E
Across-the-board personal income tax rate cuts generally benefit the wealthy more than they benefit others.
This accurately paraphrases the conclusion. The author is demonstrating that across-the-board cuts for all brackets benefit the wealthy. Benefitting the wealthy is the “similar effect” the conclusion refers to.

7 comments