A firm engages in developing and marketing electronic devices in a perfectly competitive, decreasing-cost industry. If the demand is increasing, then the most likely equilibrium response in the long run to rising demand for such devices is for selling prices to: A rise and per-unit production costs to decrease. B remain constant and per-unit production costs to remain constant. C fall and per-unit production costs to decrease. 这个题不会，网课虽然听过，但是一看那些图形有点蒙，总是感觉很难理解，麻烦讲讲

Compared with perfect competition, a natural monopoly will most likely be associated with a decrease in: A Deadweight loss. B Producer surplus. C Consumer surplus. 这个题我也是排除做出来的，但能否从正面再讲解下

n economic forecasting firm has estimated the following equation from historical data based on the neoclassical growth model: Potential output growth = 1.5 0.72 x Growth of labor 0.28 x Growth of capital The intercept (1.5) in this equation is best interpreted as: A the long-run sustainable growth rate. B the growth rate of total factor productivity. C above trend historical growth that is unlikely to be sustained 这个题该怎么理解，

Which of the following statements best describes the costs of international trade? A Countries without an absolute advantage in producing a good cannot benefit significantly from international trade. B Resources may need to be allocated into or out of an industry and less-efficient companies may be forced to exit an industry, which in turn may lead to higher unemployment. C Loss of manufacturing jobs in developed countries as a result of import competition means that developed countries benefit far less than developing countries from trade. 上一题 下一题 老师，这个题我是排除选出来的，但是不知道为什么选这个，麻烦 讲解

老师你好，reading 20， 关于hedged return这部分的例题，是将GBP和Euro hedge成美元之后才能具有可比性。 我理解了一下这个过程，请看一下理解的是否正确。 bond local market return这部分不用说，就是在各个国家投资债券的当地货币收益率。hedged benefit实际上是包含了两个步骤，一个是用美元换成欧元，按照即期汇率。然后按照Foward锁定远期利率，当到期之后将欧元再换成美元再产生一个benefit/cost，这样所有的投资收益就都换成了美元，具有可比性。 这么理解对么？

今天再听了一遍纪老师的另类投资的课程。对于roll yield，老师说二级才讲，一级不必研究。 结果网校课后题就大量出roll yield的题目，错的一塌糊涂，这是不是找死的节奏？？？

ppt中提到SST，这个缩写在原文没有。原文是TSS。 怎么理解啊？

你好，请问久期是怎么求的？久期与maturity有没有数字上的关联，比如公式之类

我已经完成视频学习 但进度总显示我未完成 点击学完了也没用

老师，请问如果题干中没有特别说明，就把非竞业条款理解为既不允许联系客户，也不允许买产品给客户？