One of the conditions for the future development of companies is the identification and use of digital capabilities. In recent years, the environment in which we live and work has changed radically. If the emergence of the Internet was revolutionary in the way we communicate and obtain information, currently the availability and mobility of technologies affects consumers' habits and promotes the transformation of classic business models. Aim of the study: to explore and learn about the development trends of digital marketing. Applied research methods: monographic descriptive method, analysis, synthesis, statistical method. The study based on scientific publications, statistics and other sources of information. The results of the study show that in 2019 digital marketing tools are most actively used: artificial intelligence / augmented reality / machine learning; video marketing; chatbots, virtual assistants.

The focus of this study to measure the varying irreversibility of stock markets. A fundamental idea of this study is that financial systems are complex and nonlinear systems that are presented to be non-Gaussian fractal and chaotic. Their complexity and different aspects of nonlinear properties, such as time irreversibility, vary over time and for a long-range of scales. Therefore, our work presents approaches to measure the complexity and irreversibility of the time series. To the presented methods we include Guzik’s index, Porta’s index, Costa’s index, based on complex networks measures, Multiscale time irreversibility index and based on permutation patterns measures. Our study presents that the corresponding measures can be used as indicators or indicator-precursors of crisis states in stock markets.

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We examine the main trends of world economic development. The characteristic feature of the modern world is the acceleration of globalization development, caused by the achievements of scientific and technological progress. The increase in possibilities of global problem solving is accompanied by their exacerbation and degree of openness of public systems in conditions of modern globalization. We consider the interaction of international economic agents, the formation of interconnections, the inevitability of transition to a new and more progressive model of economic development – metaeconomy and the problems which are potentially able to cause negative consequences of the financial sector redistribution. There is a growth of social inequality in the world, resulting in increasing income disparities, which intensifies the migration process and thereby creates new problems as a result of the coexistence of people belonging to different civilizations, cultures and value systems.

The article explores the problems of sustainable development of the natural mineral resources market in the context of digital transformation of the industry. Key trends in the development of the global mineral resources market in economic, ecological, energy and digital dimensions have been identified. The features of the world distribution of raw material base of ore and energy mineral resources in terms of their economic assessment have been studied and the countries - market drivers - have been identified. A model for sustainable development of the mineral resources market and a system of criteria for its assessment in the context of Industry 4.0 have been proposed. In particular, the link between the level of digital technologies and the energy trilemma has been analysed. Based on the results of the calculations, the grouping of the leading countries in the mineral resources market by the level of achievement of sustainable development has been carried out and ways to digitize the mining industry have been outlined.