假定两个投资项目有相同的三个支付,但是每个支付相对应的概率各不相同,如下表所示:
(1)求每个投资项目的期望报酬和标准差。
(2)吉尔的效用函数为U=5I,式中,I为支付。她会选择哪个投资项目?
(3)肯恩的效用函数为U=,他会选择哪个投资项目?
(4)劳拉的效用函数为U=5I2,她会选择哪个投资项目?
Suppose that two investments have the same three payoffs, but the probability associated with each pay off differs,as illustrated in the table below:
a. Find the expected return and standard deviation of each investment.
b. Jill has the utility function U=5I, where I denotes the payoff. Which investment will she choose?
c. Ken has the utility function U=, Which investment will he choose?
d. Laura has utility function U=5I2,Which investment will he choose?
A、She is always the apple of her father's eye.
B、She is always the pearl on her father's hand.
假设娜塔莎的效用函数为给出,式中,I为以千美元为单位的年收入。
(1)娜塔莎是风险偏好型的、风险中性的,还是风险规避型的?请解释。
(2)假设娜塔莎现在的收入为40000美元(I =40),同时明年也肯定可以获得同样的收入。她现在面临另外个工作机会,该一工作获得44000美元收入的概率为0.6,获得33000美元收入的概率为0.4。她会选择这个新工作吗?
(3)在(2)中,娜塔莎为了规避新工作对应的收入的波动,愿意购买保险吗?如果愿意,她愿意支付多少保费? (提示:风险溢价是多少?)
Suppose that Natasha's utility function is given by,where I represents annual income in thousands of dollars.
a. Is Natasha risk loving, risk neutral, or risk averse? Explain.
b. Suppose that Natasha is currently earning an income of $40000 (1 = 40) and can earn that income next year with certainty. She is offered a chance to lake a new job that offers 0. 6 probability of earning S 44000, and 0. 4 probability of earning $ 33000. Should she take the new job?
e. In (b), would Natasha be willing to buy insurance to protect against the variable income associated with the new job? If so, how much would she be willing to pay for that insurance? (Hint:What is the risk premium?)
下列各项翻译正确的一项是()
A.太后盛气而揖之
译文:太后气冲冲地对他行礼。
B.沛公奉卮酒为寿,约为婚姻
译文:沛公捧上一杯酒祝项伯健康,又(跟他)约为儿女亲家。
C.秦时与臣游
译文:在秦国时他和我出游。
D.不爱珍器重宝肥饶之地
译文:不喜欢珍贵的器物和肥沃的土地。
A.小孩子没有选择的能力,父母帮忙是应该的
B.每个父母都是爱自己子女的,但是子女未必能够理解
C.即使孩子很小,也应该首先尊重他的意愿
A.按照妈妈的要求交明明背古诗
B.告诉妈妈应该教明明数学题,这样才能够跟上班级的其他小朋友
C.告诉妈妈应该教明明画画发展他的一个专长
D.教授明明独立使用勺子吃东西的技能
A.①②
B.②③
C.③④
D.①④
A.She can play the tennis
B.He can play the tennis
C.She can play tennis
D.He can play tennis