π-Economy π-Economy 2782-6015 17 Development of the theory of portfolio investment Развитие теории портфельного инвестирования Nechaev Konstantin konstantin1919@yandex.ru 10 04 2014 2 192 149 155

The article examines the periods of development of portfolio investment in time. The process of formation of the optimal investment portfolio. Studied the contribution of Russian scientists in portfolio investment. Also made the breaking of the current stage of portfolio investment in Russia – to reflect the current stage of portfolio investment.

 PORTFOLIO INVESTMENT OPTIMAL INVESTMENT PORTFOLIO THE CONTRIBUTION OF RUSSIAN SCIENTISTS IN PORTFOLIO INVESTMENT PORTFOLIO INVESTMENT PERIODS OF DEVELOPMENT THE PRESENT STAGE OF PORTFOLIO INVESTMENT.