老师好 上课时老师讲的这道题 我不明白，既然第二张图里t与t-1 t-2 t-3 t-4之间的假设无法被拒绝，即相关性等于0。那为什么说公式是ok的？且公式里明明t 与t-1 t-4之间有相关性啊……

请教老师 ifrs下 afs重分类到htm，把oci里面的部分进行amortization这个会考计算吗？还是只要定性掌握就行了？谢谢

risk-adjusted return 是什么

想请问为什么这道题要选residual income model

06.单选题 收藏 标记 纠错 In practice, both a fixed parity regime and a target zone regime allow the exchange rate to float within a band around the parity level. Themost likely rationale for the band is that the band allows the monetary authority to: A be less active in the currency market. B earn a spread on its currency transactions. C exercise more discretion in monetary policy. 老师，麻烦帮我解析下这道题

A/R，周转率分母net revenue也是取平均值么？

Which one of the following statements about the covariance of returns for stock A and stock B is least likely accurate? A A Covariance ranges from negative infinity to positive infinity. B The covariance of return for stock A Ra with itself is equal to the standard deviation of Ra. C The covariance of returns for two stocks will be negative if the actual return on stock A is below its expected return, while the actual return on stock B is above its expected return at the same time. 老师您好，帮忙解析下这道题，这道题没读懂

15.单选题 收藏 标记 纠错 The manager of a pension fund determines that during the past five years 85 percent of the stocks in the portfolio have paid a dividend and 40 percent of the stocks have announced a stock split. If 95 percent of the stocks have paid a dividend and/or announced a stock split, the joint probability of a stock paying a dividend and announcing a stock split is closest to:

老师，请问这样的计算在计算器中怎么操作？谢谢！

老师怎么清除计算器里的求NPV数据？我想重新输入