Nguyen Q. Economic-mathematic modelling and financial optimizing management of the manufacturing and trading firms.

Object of research are processes of management of the finance of firm. The purpose of the dissertation consists in development of a uniform complex of economic-mathematical models of long-term and short-term financial planning and management by the firm's market value maximization criteria. Methods of research - application of system-analysis methodologies for acceptance of the scientifically proved decisions in sphere of financial management. The dependence of the cost of the capital on value of debt is investigated and the necessity of the account of this dependence is proved at study of relation between market value of firm and structure of its capital. The model of optimizing capital structure is developed. Three-step process of formation of an optimizing investment portfolio is proposed. The interrelation between optimizing models of an investment portfolio and capital structure is established. The original approach to management of operating activities is proved. An economic ordering quantity model taking in to account comparative evaluation between the losses of profit due to stock shortage and the expenses for storage insurant reserve has been obtained for the first time. Sphere of use - application of the developed models in practice of management of joint-stock companies, which are engaged in manufacturing and trading activity. In some case, methodologies carry standard character, there for they may be applicable for firms of any activity.