“…He had studied the question whether the higher interest rate for borrowing could be compensated by tax holidays. Another researcher, Startseva [2] in her work researched a principle of reducing indeterminacy during management decision making, due to usage of additional objective information, which could be found using special diversified corporation evolution forecast economic mathematical model (EMM) was suggested. Chinese scientists Dong Jiuying and Li Yinsheng [3,4], showed that the mathematical problem of optimally managing a portfolio of securities had received considerable research attention in recent years.…”