ÊÙµÃÇÔ·ÂÒÈÒʵÃì ¤×Í Selection Index: I = 0.7 Career + 0.3 Area Restriction: 1. maximum correlation between aggregate politics gain and Selection Index 2. used real local location NOT on government registration so that BKK will has more MP while iisarn will has less MP I gave this formular to PM Prem in 2527.