在86的答案说：If one user of common land overuses it even slightly, the other users are likely to do so even more, with the consequence that the costs to each user outweigh the benefits.
To protect certain fledgling industries,the government of country Z banned imports of the types lf products those industries were starting to make.As a direct result,the cost of those products to the buyers,several export-dependent industries in Z,went up,sharply limiting the ability of those industries to compete effectively in their export markets.
95. Which of the following conclusions about country Z's adversely affected export-dependent industries is best supported by the passage?
A.Profit margins in those industries were not high enough to absorb the rise in costs mentioned above.
B.Those industries had to contend with the fact that other countries banned imports from country Z.
C.those industries succeeded in expanding the domestic market for their products.
D.Steps to offset rising materials costs by decreasing labor were taken in those industries.
E.those industries started to move into export markets that they had previously judged unprofitable.
Hardin argued that grazing land held in common(that is,open to any user)would always be used less carefully than private grazing land.Each rancher would be tempted to overuse common land because the benefits would accrue to the individual,while the costs of reduced land quality that results from overuse would be spread among all users.But a study comparing 217 million acres of common grazing land with 433 million acres of private grazing land showed that the common land was in better condition.
86.Which of the following , if true and known by the ranchers, would best help explain the results of the study?
A.with private grazing land, both the costs and the benefits of overuse fall to the individual user.
B. The cost in reduced land quality that is attributable to any individual user is less easily measured with common land than it is with private land.
C. An individual who overuses common grazing land might be albe to achieve higher returns than other users can, with the result that he or she would obtain a competitive advantage.
D. If one user of common land overuses it even slightly, the other users are likely to do so even more, with the consequence that the costs to each user outweigh the benefits.
E. There are more acres of grazing land held privately than there are held in common.作者: lucylu 时间: 2002-11-24 02:07
OG 86 argue that each rancher would be tempted to overuse common grazing land because "benefits > cost" which spread among all users.
When "benefits < cost", oversue would not happen in common grazing land.
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