Abstract: Basic capital investment is the main catalyst of a dynamic economic growth. Due to the institutional changes in the sphere of property, the investment market becomes more dependent on the motivation of investors in the existing market conditions. The investment level depends on the socio-economic situation in the country and on the external challenges. The research is aimed at the assessment of the influence of investments on the dynamics of the GDP and of the possibilities of investments stimulation in a complicated situation on the finance market in the conditions of restrictions and anti-Russian sanctions. The authors use the methods of analysis, synthesis, generalization, comparison, and grouping. The empirical base contains the statistical data which allows analyzing structural shifts, tendencies and sources of financing of basic capital investments. The authors define the interactions between the investment dynamics and the GDP for the period from 1990 till 2014. The results of the research are presented in a graphical form. The authors substantiate the conclusions about the increase of influence of corporate structures on the activation of investment activities in certain sectors of the economy, and define the role of the government and the importance of foreign investments in the investment sphere. The authors reveal the logic of a more rapid growth of economy in relation to basic capital investments in terms of its renewal. The multiplier effect appears when modernizing basic capital.