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L3V3 P202. I'd like to ask something about the tracking error and transaction cost. (1) If the tracking error measures the divergence in portfolio price and benchmark price, does that mean whatever causes the price difference could affect the tracking error? (2) In the diagram, why is the "tracking error gross of trading cost" continuously declining when both tracking error and transaction cost are increasing? (3) How to guarantee a convex U-shape but not a concave U-shape? If the first security purchased for the portfolio is illiquid, then transaction cost dominates and tracking error should increase.
1。为什么描述Betten'sregression不是cross-sectional的呢?不是同一个公司的收益率,和两个不同指数之间的关系么? 2。第5题B项中positive return不是正收益,大于0的收益么?斜率大于0,当x下降,Y应该正向变动,但正向收益不一定吧 3。大样本248,t趋近z,这个题给的CV值恰好为1.96。其他的题中也有大样本,但题目是给了t分布的查表值,这时候还是以题目中给的值为主进行计算是吧?
C项,X变动一单位,应该是lny变动1单位吧。斜率为0.2951,那y的变动是e的0.2951次方么?B项,就是这个意思吧,explainsthe log of net profit margin。 另,R方,我感觉说成x方解释%的Y方变动,而不是解释%多少的Y变动,是不是更准确一些,因为平方会使得数字变化,变动的数值不一样的
精品问答
- 这两个的逻辑都很奇怪 sponsor薪资和业绩挂钩的话他会更用心选基金经理那么一类和二类错误都应该下降吧 monitor这个词是监控的意思 我觉得你很难监控一个没跟你签雇佣合同的基金经理的表现
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- Q3:解析里面Team Purple’s conclusion (the externalities associated with human capital is the most important determinant in predicting the occurence of convergence) implies that the production function is a straight line, and is compatible with non-convergence.这段话中 externalities associated with human capital具体是什么?怎么得到the production function is a straight line这个结论呢?
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- Risk Budget and risk parity 第二道思考题,里面的Variance是不是完全是个冗余信息,给来误导的呀?
- liability relatibe asset allocation这三种方式的区别是什么呀 怎么区分












