Information and telecommunication services are currently a full-fledged resource for social development compared to traditional resources. The growth of the level of scientific and technological progress has led to the incredibly fast development paces in the sphere of information and communication technologies, which has a significant impact on the development of the economy. On the basis of a thorough analysis of the sectors of information and communication technologies and components of the ICT development index, the article substantiates the need for accelerated digitization of the majority of enterprises of different spheres of economic activity with the aim of qualitative development of Ukrainian economy in order to increase its competitiveness in the world. This is explained by the fact that information and technology represent the main economic resource in the period of formation of information society and digital economy, and enterprises of the sphere of communication and informatization are a catalyst for social and economic development of the country as a whole. Using a methodological toolkit of the theory of systematic and correlation-regression analysis, an economic-mathematical model of the development of the sphere of communication and informatization in the regions of the world and individual countries of the world is constructed. It is based on the existing pattern of leading development of the communications sector, but takes into account the degree of economy dependence on the ICT development, which in some regions and countries is 100%. This is due to the approaching mass availability of ICT services in some countries in these regions. On the basis of the constructed model, the forecasting of GDP PPP per capita was carried out, which showed faster rates of growth of the country’s economy with the growth of the development level of the sphere of communication and informatization and accessibility of telecommunication services. In turn, the availability of telecommunication services is influenced by the digital skills of society and the level of their prices, which has necessitated determining the dependence of GDP PPP per capita on prices for communication services of countries with varying degrees of socio-economic development. This makes it possible to identify reserves for improving the productivity of individuals while increasing the availability of telecommunications services.
