Investments in the context of sustainable development of the economy:the methodological aspect

The paper proposes four stages of analyzing, modeling and solving investment problems that can ensure the sustainable development of the national economy; the methodology is proposed: identifying the innovations in the respective field; choice of investment orientation; the distribution of space investments over time; choice of investment alternatives. The proposed methodologies are interpreted economically, exemplified. The development of the economy can be sustainable if it is based on innovations, on a number of principles, restrictions