不太理解为什么说twrr的性质是不受现金流入流出的影响而这道题是这样计算的

不大明白dollar duration,之前老师没有教过。可以解释下为什么A是错的吗？ 还有选项C，为什么coupon rate 越小，意味着久期约小，没有说清楚两者的关系。

不大明白dollar duration,之前老师没有教过。可以解释下为什么A是错的吗？

分为：appraisal indices ,repeat sales indices,and real estate investment trust (REIT)indices

1.Equal weighted indices 等权重是保持Q*P相等的，因此一旦P发生变化，就需要调整。 2.Price weighted indices 只有当公司拆分或合并股票时，才会发生调整。 3.market capitalization 通常会自动调整， 无法比较2和3谁更需要频繁的调整。

Which of the following is the reason why leading indicators are useful? A they help investors to predict long-run returns on stocks. B their turning points signal possible future change in the trend of economic growth. C they may change into coincident indicators to help confirm the current state of the economy. C

1.卖出看跌期权，实际还是看涨 2。从利率平价理论 C-P就是一个long position

Which of the following statements is least likely to be correct regarding the Producer Price Index (PPI)? A The PPI can influence the future CPI. B The PPI is used more frequently than CPI as a benchmark for adjusting labor contract payments C The PPI category weights can vary more widely than analogous CPI terms

老师，怎么看出商品市场均衡的？

Which of the following are the comparisons of unemployment among countries? A the comparisons are impossible. B the comparisons show which countries are more prosperous. C the comparisons must take into account different unemployment measurement methods.