NEC全美经济学学术活动2023年报名已启动
NEC全美经济学学术活动，初级站研习阶段定于2022年12月17/18日，参与者可以任选一天进行研习测评，测评内容为经济学评测Qualifying Test。
经济学评测以客观题测评为主，包含微观经济学、宏观经济学、国际经济与时事三个版块，全面考查学生的基本经济学知识和科学运用经济学知识的能力。
NEC经济学评测时，各模块到底是如何命题与知识点相结合的呢？今天，我们就以微观经济学中机会成本以及生产可能性曲线两个知识点为例，来解析NEC的命题规则以及做题方法。
例题一
9. Joe is in training, hoping he will make the varsity football team next season. He will usually train for five hours a day, four days a week. On the last day of training before tryouts, Joe decides to train one extra hour. Joe's decision is worth it if which of the following isTRUE?
A.Joe should continue training for an extra hour if he thinks the extra practice will help him get on the team.
B.Joe should continue training an extra hour if the marginal cost is greater than the marginal benefit.
C.Joe should continue training an extra hour if the marginal benefit is greater than the marginal cost.
D.Joe should not continue training an extra hour, because the opportunity cost is too great.
E.Joe should not continue training an extra hour, because the opportunity cost is equal to the decision to train.
本题涉及知识点：Mi.1.1.3 机会成本
例题二
12. The production possibilities curve will show a straight line if which of the following isTRUE?A.The opportunity cost is constant.B. Vital resources for the good are limitless.C.The economy is operating below maximum efficiency and output.D.The law of decreasing marginal utility does not apply.E.Marginal benefit is less than marginal cost.
本题涉及知识点：Mi.1.1.7生产可能性曲线
每一道的题目背后都有对应的知识点，熟练掌握知识点再辅以适量的题目练习，就能在NEC初级站研习阶段提高正确率。
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