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by mjy
December 11th, 2008, 9:13 pm
Forum: Careers Forum
Topic: MFE moving to a traditional finance role???
Replies: 19
Views: 50142

MFE moving to a traditional finance role???

QuoteOriginally posted by: phil451whereas an MSc in Finance is all about accounting - Balance sheets (on/off), Cash Flows and Income statements. There is probably some cross over but not much.Are you sure? If this is the case, why don't we call it MSc in Accounting?
by mjy
October 20th, 2008, 7:35 pm
Forum: Numerical Methods Forum
Topic: Stochastic optimal control and monte carlo simulation
Replies: 0
Views: 47845

Stochastic optimal control and monte carlo simulation

<r>Has anyone of you here implemented the solution method proposed by the following paper (by C.Rogers) ?<URL url="http://www.statslab.cam.ac.uk/~chris/papers/psoc150806.pdfI"><LINK_TEXT text="http://www.statslab.cam.ac.uk/~chris/pa ... 50806.pdfI">http://www.statslab.cam.ac.uk/~chris/papers/psoc150...
by mjy
June 13th, 2008, 7:44 am
Forum: Student Forum
Topic: motivation to keep paying dividends
Replies: 8
Views: 54360

motivation to keep paying dividends

as long as the management does not own 100% of the firm, there might be free cash flow problem (cf. Jensen 86).
by mjy
May 27th, 2008, 11:34 am
Forum: Careers Forum
Topic: IT/Programming Interview Questions
Replies: 8
Views: 56082

IT/Programming Interview Questions

QuoteOriginally posted by: Vik100I am new to the forum. Would anyone mind letting me know where I can find the guide?For a copy of Paul & Dominic's Guide to Quant Careers, send your CV toDominic@PaulDominic.com
by mjy
May 9th, 2008, 4:10 am
Forum: Student Forum
Topic: question - integrating brownian motion
Replies: 3
Views: 56296

question - integrating brownian motion

<t>QuoteOriginally posted by: misiti3780ok, i get what you are saying.so the expectation is zero becuase W(t) is continuous, and when you turn the integral into a summation, and let the the number of partitions (n) go to infinity,the max [W(t_j+1) - W(t_j)] for 0 < k < n-1 goes to zero, making the e...
by mjy
April 9th, 2008, 6:19 pm
Forum: Student Forum
Topic: European Exchange Option
Replies: 2
Views: 55903

European Exchange Option

what is your question, then?
by mjy
April 4th, 2008, 6:21 pm
Forum: Student Forum
Topic: Elementary Feynman-Kac question
Replies: 1
Views: 56210

Elementary Feynman-Kac question

<t>see the comments below. QuoteOriginally posted by: CrashedMintI don't understand some parts of example 5.7 on pages 70~71 of Björk's book. I guess this stuff is very very basic. So here it goes:Giveni get.%%%% that is right %%%%%%%Then Björk saysWhy is that?%%%% i do not see the point, either. %%...
by mjy
April 1st, 2008, 7:10 pm
Forum: Book And Research Paper Forum
Topic: looking for kusuoka's paper
Replies: 1
Views: 56933

looking for kusuoka's paper

i am looking for the following paper:Kusuoka, S 1999. A remark on default risk models. Advances in Mathematical Economics 1, 69-82thanks in anticipation,mjy
by mjy
March 30th, 2008, 5:20 am
Forum: Student Forum
Topic: How to prove lim(quadratic variation of Wiener)=t a.s.
Replies: 11
Views: 59226

How to prove lim(quadratic variation of Wiener)=t a.s.

yes, you can say so. the following might also be helpful. http://mathworld.wolfram.com/TelescopingSum.html
by mjy
March 29th, 2008, 1:08 pm
Forum: Student Forum
Topic: How to prove lim(quadratic variation of Wiener)=t a.s.
Replies: 11
Views: 59226

How to prove lim(quadratic variation of Wiener)=t a.s.

<t>what i wrote is the following:SUM(var(Wtj-Wtj-1)^2) = SUM(E[(Wtj-Wtj-1)^4] - E[(Wtj-Wtj-1)^2]^2) <= SUM(E[(Wtj-Wtj-1)^4]) = 3 SUM (tj-tj-1)^2 <= 3*max_j (tj-tj-1) * SUM (ti-ti-1) --> 0.the first equality follows from the definition of the variance. then the weak inequality (<=) follows from the f...
by mjy
March 29th, 2008, 12:08 pm
Forum: Student Forum
Topic: How to prove lim(quadratic variation of Wiener)=t a.s.
Replies: 11
Views: 59226

How to prove lim(quadratic variation of Wiener)=t a.s.

<t>Zerdr0n, thanks a lot for pointing that out. yes, the sum converges in probability, which is a weaker convergence concept than almost sure convergence. ** added on May 7th 2008 **if the sum converges in probability, then one might find a subsequence of the original sequence of Riemannian subdivis...
by mjy
March 28th, 2008, 5:21 pm
Forum: Student Forum
Topic: How to prove lim(quadratic variation of Wiener)=t a.s.
Replies: 11
Views: 59226

How to prove lim(quadratic variation of Wiener)=t a.s.

<t>here come my two cents to deal with variance.following magnolija's notation, we need to compute var(SUM (Wtj-Wtj-1)^2) = SUM(var(Wtj-Wtj-1)^2) (because of the independent increments) <= SUM 3*(tj-tj-1)^2 (because V(x^2) = E(x^4) - (E(x^2))^2 <= E(x^4) = 3*sigma^4, for x \sim Normal(0, sigma)) <= ...
by mjy
March 11th, 2008, 2:16 pm
Forum: Student Forum
Topic: closed form / Levy process
Replies: 4
Views: 58023

closed form / Levy process

Black-Scholes formula uses numerical integration, as well.
by mjy
March 11th, 2008, 11:39 am
Forum: Student Forum
Topic: closed form / Levy process
Replies: 4
Views: 58023

closed form / Levy process

<t>QuoteOriginally posted by: AlekkHi all, for my study I am doing a project where I have to study the convergence rate of a Euler scheme for a SDE driven by a levy process. This a very simple one, namely:dS/S = dZwhere Z is a Levy process of infinite activity. I have to do that for different Levy m...
by mjy
March 4th, 2008, 1:03 pm
Forum: Numerical Methods Forum
Topic: recursive method for nondifferentiable return function
Replies: 4
Views: 60420

recursive method for nondifferentiable return function

i just download the paper from jstor. it seems very sexy. thanks a lot.