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Quant版 - 弱问一道面试题
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相关话题的讨论汇总
话题: interest话题: rate话题: now话题: money
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1 (共1页)
s******g
发帖数: 129
1
If you have $500 now, within two years it will be $525 under the current 5%
interest rate. There's a probability of 30% the interest rate is going to
hike to 6%, and 50% probability its going to remain the same. There's 20%
chance interest rate will go down to 4%. Question is, will you take the
money now or later, and provide reasoning.
y***s
发帖数: 23
2
猜来着。
如果0.2概率从5%涨到最高6%;0.5的概率remains 5%;0.2的概率hit 到最低4%。那么
这样是不是就抵消了;然后就跟5%一样。但剩下的0.1概率是上涨,所以我们期望说利
率会上涨?
n****e
发帖数: 2401
3
How to get 525 under 5% rate in 2 years?

%

【在 s******g 的大作中提到】
: If you have $500 now, within two years it will be $525 under the current 5%
: interest rate. There's a probability of 30% the interest rate is going to
: hike to 6%, and 50% probability its going to remain the same. There's 20%
: chance interest rate will go down to 4%. Question is, will you take the
: money now or later, and provide reasoning.

s******g
发帖数: 129
4
一年...

【在 n****e 的大作中提到】
: How to get 525 under 5% rate in 2 years?
:
: %

k*****n
发帖数: 117
5
Let V be the price to deliver $100 one year from now,
then V is a function of interest rate r.
The curve is convex.
V
|
|x
| x
| x
| x
| x
| x
| x
+-------------r
You want to compare E[V[R]] with V[5.0%]
Jensen's inequality will only give you E[V[R]] >= V[E[R]] = V[5.1%]
So you need to calculate actual price or calculate bond convexity at 5.0% to
compare.My guess is that E[V[R]] > V[5.0%], meaning current price is cheap
and you should take the money later. i.e. invest money and take R% interest.
1 (共1页)
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相关话题的讨论汇总
话题: interest话题: rate话题: now话题: money