Serving the Quantitative Finance Community

Search found 44 matches

by islandboy
April 15th, 2007, 3:28 am
Forum: Careers Forum
Topic: CMU MSCF 07-08
Replies: 4
Views: 75701

CMU MSCF 07-08

around 25 students so far, both full time and part time participants.
by islandboy
April 13th, 2007, 1:08 pm
Forum: Careers Forum
Topic: CMU MSCF 07-08
Replies: 4
Views: 75701

CMU MSCF 07-08

a good hard bump.
by islandboy
April 7th, 2007, 4:02 pm
Forum: Careers Forum
Topic: CMU MSCF 07-08
Replies: 4
Views: 75701

CMU MSCF 07-08

<r>I have created a yahoo group for admitted students who have decided to enter CMU's MSCF program. Batch 2007-2008.Address is at <URL url="http://groups.yahoo.com/group/CMU_MSCF_07-08Come">http://groups.yahoo.com/group/CMU_MSCF_07-08Come</URL> and join us future CMU classmates!I will add more featu...
by islandboy
April 1st, 2007, 6:51 pm
Forum: Student Forum
Topic: Whats the VaR
Replies: 5
Views: 75535

Whats the VaR

Aaron, ppauper,thanks for your help! cheers!
by islandboy
April 1st, 2007, 6:00 am
Forum: Student Forum
Topic: help in understanding Ito formula (Bjork text)
Replies: 5
Views: 75833

help in understanding Ito formula (Bjork text)

I'll try that out.thanks again for the help Alan
by islandboy
March 31st, 2007, 7:08 pm
Forum: Student Forum
Topic: help in understanding Ito formula (Bjork text)
Replies: 5
Views: 75833

help in understanding Ito formula (Bjork text)

<t>hi thanks for replying.QuoteThe second follows from Ito's formula for f(S1,S2).that's the one I couldn't understand. Are we supposed to expand Z2(t) and get its derivative with respect to S1 and S2 repectively...cause that kind of computation seems too unnecessarily complicated and messy.QuoteThe...
by islandboy
March 31st, 2007, 6:01 pm
Forum: Student Forum
Topic: help in understanding Ito formula (Bjork text)
Replies: 5
Views: 75833

help in understanding Ito formula (Bjork text)

<t>As a follow-up question what if instead we are given:where and are scalar P-Weiner process with correlation rho, and Y1(t) and Y2(t) are independent weiner processes.According the Bjork, if we use the Ito formula again, instead of justas in the above.that is, if we define Z2(t) as in the above, w...
by islandboy
March 31st, 2007, 5:46 pm
Forum: Student Forum
Topic: help in understanding Ito formula (Bjork text)
Replies: 5
Views: 75833

help in understanding Ito formula (Bjork text)

<t>this is from the Bjork book, Arbitrage Theory in Continuous Time, pages 351 to 352I'm trying to understand how Bjork used the Ito Formula to solve the following:Given:and lettingBjork gave the P-dynamics of Z2 as follows (we ignore the terms in dt):I understand that the Ito Formula states dW(t) t...
by islandboy
March 31st, 2007, 5:34 pm
Forum: Student Forum
Topic: Whats the VaR
Replies: 5
Views: 75535

Whats the VaR

<t>hey thanks for the help.yep, alpha = 1% means 99% VaRso I guess my friend is right then.What I want to understand is does that mean that the 99% VaR always coincide with the greatest amount of loss or least amount of gain, as long as the probability of that happening is greater than 1%?For exampl...
by islandboy
March 31st, 2007, 1:18 pm
Forum: Student Forum
Topic: Whats the VaR
Replies: 5
Views: 75535

Whats the VaR

<t>How do you compute the VaR for this problem:The position is you have 1/3 probability of gaining $1001/3 probability of gaining $201/3 probability of losing $30alpha is 1%my friend's answer is -$30, mine is $33 1/3...which is the correct answer?and if -30$ is correct, is it then always the smalles...
by islandboy
March 25th, 2007, 5:35 pm
Forum: Student Forum
Topic: Change of Numeraire(Margrabe Options)
Replies: 1
Views: 76316

Change of Numeraire(Margrabe Options)

<t>I have a question with regards to an application of change of numeraire to the Margrabe (Exchange) Option:given the price dynamicswhere W1 and W2 are scalar P-Wiener with local correlation p (rho) and thus the sigmas are scalar constants.How do I prove that the 2 scalar Wiener processes W1(t) and...
by islandboy
March 25th, 2007, 5:09 pm
Forum: Student Forum
Topic: equivalent probabilities
Replies: 0
Views: 75559

equivalent probabilities

<t>Given a probability space, how do I find the family of all equivalent probabilities on the space?For example,let the discrete random variable X have uniform probability equal to 1/3, taking values 10, 2, and -3. the r.v. is represented on the finite probability space = {1, 2, 3}. How do I find th...
by islandboy
February 13th, 2007, 9:01 am
Forum: Careers Forum
Topic: How much math is really used in practice?
Replies: 6
Views: 80147

How much math is really used in practice?

<t>This is for people who are already in the industry:For career paths that you get after earning a degree in fin math (such as risk management, derivatives structuring, etc...not necessarily limited to quant which are mostly filled by PhDs anyways), how much math (especially the theoritical ones) d...
by islandboy
August 1st, 2006, 9:35 pm
Forum: Student Forum
Topic: stopping time, Fn measurability, and the stochastic process
Replies: 2
Views: 96675

stopping time, Fn measurability, and the stochastic process

<t>Continuing...for b, I must show that each side of the equation is contained in the other. Here's how I approached the problem: is simply (since T+1 is always greater than t0). This is always a by definition of . And since is just an element of , I have shown that is contained in For the other way...