The successful development of the digitalization of the Russian economy is impossible without improving the quality of economic management decisions. To do this, it seems appropriate to use all the tools for digital processing of large data sets, developed in economics, physics and other natural sciences. This paper substantiates the possibility of improving the quality of economic management decisions and the formation of development strategies by an economic entity using digital econophysical tools and the method of statistical regulation. A variant of improving the methods for optimizing the investments of economic entities based on the theory of investment portfolios of Markowitz and the rejection of optional restrictions such as linearity of trends and other restrictions is proposed. The results obtained can be used to refine estimates and extract additional information about the hidden relationship between the production of goods by agro-industrial enterprises in order to make more effective management decisions as part of the implementation of their development strategies.