Finance FAQs

Why do we ignore the case of rho coefficient more than 1 in unit root analysis of financial time series?
eg., consider the following time series process: y_t = μ + Φy_t + u_t For doing the unit root test analysis we consider the case Φ<1More »
When would an Augmented Dickey Fuller test be needed instead of Dickey fuller test?
Recall that the asymptotic distribution of Dickey Fuller test were derived for the null hypothesis for an autoregressive process AR(1), i.e., x_t=αx_t-1+u_t H₀ : α=1 H₁ : α...... More »
Can a brownian motion be differentiated?
Brownian motion cannot be differentiated using standard calculus, even though it is continuous. This is because the direction of change at t can possibly be completely different from that of t+δt even if we make +δt extremely small ...... More »
How would you describe yourself?
My background to date has been centered around preparing myself to become the very best financial consultant I can become. Let me tell you specifically ...... More »
What is T-forward measure?
The forward measure for maturity TF is the measure associated with taking as numeraire a zero coupon bond maturing at TF with a value of 1. The defining feature of the forward measure is that it makes the ratios B(t,T)/B(t,TF) martingales f...... More »
How long would you expect to work for us if hired?
Specifics here are not good. Something like this should work: I'd like it to be a long time. Or As long as we both feel I'm doing a good job. ...... More »
What is Asymptotic Analysis?
Some problems in applied mathematics contain a small parameter eg.,e. Setting this parameter to 0 sometimes leads to an easier problem - called "unperturbed problem". The solution of unperturbed p...... More »
What is Discount Cash Flow Management?
HTML clipboard The DCF for an investment is calculated by estimating: the cash that you will have to pay out, and the cash which you expect to receive back. The timeframes that you expect to receive ...... More »
When I simulate LMM and gather realized forward rates eg., F5(5) in a vector , the volatility of the forward rates vector for F5 is not equal to input forward rate volatility of F5
The forward rate volatility input for LMM model is not the variability of forward rate vector, but is variability of the change in logF5 when timeline is being advanced i.e., it is volatility of logF5(t+dt)-logF5(t) ...... More »
What is the PSSI candidate process?
Candidates come to PSSI from many sources, which include responses to our ads, referrals, our website, and some candidates call to talk with one of our recruiters about available opportunities. Typically, we will need an updated resume in Word for...... More »