Hi Mac,Would you please also send me the model you have? my email is cli2020@yahoo.comCheers,

Thanks for the reply.Can you suggest some general reference document/material regarding 'optimization routine', 'direct search method' and 'pattern search' you mentioned? Thanks!

<t>I am new to this area and having couple of basic questions. 1) If we assume common factor is NIG and the idiosyncratic one is normal, then what kind of distribution is it for the total of the 2 (with correlation taken in to consideration)?2) How do you guys calibrate the model, i.e. how to pick t...