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by weare
January 2nd, 2013, 4:36 am
Forum: General Forum
Topic: Kalman Filter for Arbitrage Free Nelson Siegel
Replies: 2
Views: 10051

Kalman Filter for Arbitrage Free Nelson Siegel

<r>Hope this helps...<URL url="http://econpapers.repec.org/article/eeeempfin/v_3a11_3ay_3a2004_3ai_3a2_3ap_3a277-308.htmIn"><LINK_TEXT text="http://econpapers.repec.org/article/eee ... -308.htmIn">http://econpapers.repec.org/article/eeeempfin/v_3a11_3ay_3a2004_3ai_3a2_3ap_3a277-308.htmIn</LINK_TEXT>...
by weare
September 29th, 2006, 10:07 am
Forum: Technical Forum
Topic: Good CMS spread article recommondation
Replies: 41
Views: 102866

Good CMS spread article recommondation

Would you send me a copy?weareda@dreamwiz.comThanks in advance!!!!
by weare
December 12th, 2005, 10:49 pm
Forum: Technical Forum
Topic: Pricing of libor exotics
Replies: 39
Views: 185657

Pricing of libor exotics

Would you please?....weareda@dreamwiz.comThanks in advance...
by weare
August 11th, 2005, 12:07 am
Forum: Technical Forum
Topic: Does cointegration implies mean reversion....plzzz guide
Replies: 11
Views: 144629

Does cointegration implies mean reversion....plzzz guide

<t>I'm afraid whether you understand my POOR English.One of the stylized facts of non-stationary timeseries is mean variation which means that partial sample meansof different(or overlapped) time period are different, (i.e., vary).This is represented by the unit root or random walk component.The lim...
by weare
August 10th, 2005, 1:13 am
Forum: Technical Forum
Topic: Does cointegration implies mean reversion....plzzz guide
Replies: 11
Views: 144629

Does cointegration implies mean reversion....plzzz guide

<t>Cointegration is independent with mean reversion...Mean reversion implies variating mean.Stationary time series do not have 'variating mean'.'Variating mean' is a typical property of non-stationary time series...In time series domain, they say it 'trend reversion'.Some practitioners including a f...
by weare
July 28th, 2005, 7:44 am
Forum: General Forum
Topic: CMS Swap
Replies: 50
Views: 217884

CMS Swap

Hi....Pat...would you please..?.....weareda@dreamwiz.comThanks in advance...
by weare
May 6th, 2005, 8:08 am
Forum: Technical Forum
Topic: Correlation question
Replies: 22
Views: 152999

Correlation question

The determinants of empirical (estimated) correlation matrix is always not less than zero.Negative determinants are cuased by (the computer or the software) round-off error.
by weare
May 6th, 2005, 4:04 am
Forum: Technical Forum
Topic: Correlation question
Replies: 22
Views: 152999

Correlation question

<t>The variance-covariance matrix must have a PSD(Positive Semi Definite) property....but if all off-diagonal elements are negative, the matrix looses the PSD property...the property may be simply verified by calculating the determinant.For example, consider a group of random variables having identi...
by weare
March 29th, 2005, 12:36 am
Forum: Technical Forum
Topic: Tsiveriotis and Fernandes's paper
Replies: 5
Views: 156051

Tsiveriotis and Fernandes's paper

me too, please....weare@npricing.co.kr
by weare
March 17th, 2005, 11:56 am
Forum: Technical Forum
Topic: Zero-crossing and ARMA
Replies: 5
Views: 156522

Zero-crossing and ARMA

<t>The characteristic equation from your estimation result is .9B^2 +B +1 = 0 where B is backshift operator. Since the discriminant of the equation is less than zero, B has imaginary roots. This means that the underlying time series has seasonal component. In this case one should consider seasonal l...
by weare
December 8th, 2003, 11:09 pm
Forum: Technical Forum
Topic: TARN
Replies: 14
Views: 193308

TARN

<t>But TARN has no optionality. It only has the special stopping rule....Rately I have priced dozens of structured notes. Among them, there exist some TARNs and my simulation results say that it is profitable to buy them...What I am anxious to know is the sellside hedging method.Do the sellers dare ...
by weare
December 5th, 2003, 10:50 pm
Forum: Technical Forum
Topic: TARN
Replies: 14
Views: 193308

TARN

Thanks for short comment....eiriamjh....Then...how TARN buyers manage to make money?....
by weare
November 27th, 2003, 11:56 pm
Forum: Technical Forum
Topic: TARN
Replies: 14
Views: 193308

TARN

Is there anyone who can explain the hedging scheme for TARN?Or how do the issuers make money?Thanks in advance!!!
by weare
September 17th, 2003, 3:23 am
Forum: Technical Forum
Topic: Risk Neutral Probs. from Credit Spreads..
Replies: 4
Views: 190472

Risk Neutral Probs. from Credit Spreads..

Using the certainty equivalent formula....1/(1+Rf+CS)^T = (PD*RR +1-PD)/(1+Rf)^T where PD: Risk-Neutral Probability of Default, RR: recovery rate, CS: credit spread, Rf: Riskfree ratePD = (1 - ((1+Rf)/(1+Rf+CS))^T)/(1-RR)
by weare
September 15th, 2003, 3:11 am
Forum: General Forum
Topic: Certainty Equivalent Expression
Replies: 4
Views: 190180

Certainty Equivalent Expression

<t>The fundamental certainty equivalent expression for credit spread is1/(1+rf+CS) = (PD*R + 1-PD)/(1+rf) 1-year case1/(1+rf+CS)^n = (PD*R + 1-PD)/(1+rf)^n n-year casewhere rf: riskfree rate, CS: credit spread, PD: default probability, R: recovery rateBy some manipulation gives,CS = (1+rf)(E^-(1/n)-...