Modern trends of trade-economic relations of the countries within the COVID-19 pandemic have been systemized in the development of mutual relations in particular economy sectors have been identified. Direct connection between the increase of export volume to China and Ukraine GDP growth has been established in the study based on the correlation-regression analysis. Weaknesses and strengths as well as opportunities and threats of mutual relations within the pandemic have been defined. The influence of the world crisis, creating a free trade area, and other factors on foreign trade circulation between Ukraine and China have been studied with the tools of empirical gravity model of international trade. Foreign trade circulation up until 2022 with and without creating a Free Trade Area has been forecast based on the modelled data. Perspective directions of trade-economic relations have been defined; the strategy of extending the trade-economic integration of Ukraine and China within the COVID-19 pandemic and in post-pandemic time within customs tariffs liberalization, intensification of symmetric interdependence and complementarity between the countries, within creating a free trade area, diversifying trade turnovers, overcoming the pandemic, reduction of crisis consequences, and strengthening cooperation in new industries of post-pandemic time has been grounded.

The study is devoted to the problem of trade integration of countries, in the context of globalization, the development of foreign trade is one of the main factors in the competitiveness of the national economy. Partnership with the EU is strategic for Ukraine. The aim of the study is to reveal the key characteristics and manifestations of the asymmetric development of trade integration of Ukraine and the EU and to identify priority areas of trade and economic cooperation. The object of the study is the process of trade integration of countries on the example of Ukraine with the EU. Methods, measures and tools of trade and economic cooperation between Ukraine and the EU in the context of integration are the subject of the study. The study is devoted to the characteristics of the partnership between Ukraine and the European Union in the context of the Deep and Comprehensive Free Trade Area (DCFTA), which came into force on September 1, 2017 and is part of the Association Agreement. The dynamics of indicators of Ukraine’s economy development and foreign trade sphere is quantitatively estimated. An analysis of relations between Ukraine and the EU was conducted and it was concluded that the EU is a priority partner of Ukraine, as on average 42% of Ukraine’s goods and services are exported to Europe in recent years. The existing asymmetries of trade and economic integration of Ukraine and the EU, which are manifested in technological disproportion, raw material exports from Ukraine and high-tech imports, a negative balance and the constant growth of the negative trade balance of Ukraine are pointed out. To assess the effectiveness of Ukraine’s trade policy measures in terms of the DCFTA, a gravity model was built, which allowed to state that bilateral trade between the EU and Ukraine is more elastic than the dynamics of economic growth of EU GDP and less elastic than the dynamics of Ukraine’s GDP. The study confirmed that the DCFTA between Ukraine and the EU has already significantly affected the growth of trade turnover between these countries. The main integration opportunities and threats of cooperation between Ukraine and the EU have been identified. The main tools of trade integration are highlighted and the priority goals of trade integration of countries are identified in our study of Ukraine and the EU.

The study analyzes the dynamics of the development of integration processes. It is determined that the current stage of development is characterized by a change in the structure of the World Trade in favor of services and innovative products; by dynamic growth of trade in intermediate goods and services within global value chains. Trade integration covers a much broader network of participants, including bilateral, multilateral and interregional initiatives. The regional trade agreements (WTO-extra, WTO-plus) are being deepened and expanded. It is determined that the most common form of integration processes is the establishment of the Free Trade Zones, in particular on the basis of bilateral initiatives. Based on this, the bilateral trade relations between the post-Soviet countries and their trading partners (Poland, Italy, Switzerland, Bulgaria, Turkey, Czech Republic, Great Britain, Finland, Sweden, Netherlands, Germany, Romania, China) were analyzed. The index of trade complementarity was calculated and analyzed in order to identify the compliance of the export structure of the post-Soviet countries with the general structure of imports of these trading partners for high-tech product groups, in particular: machines and apparatuses for soldering and welding (code 8515 according to UKTZED (Ukrainian Commodity Coding System)), transmission shafts and bearing housings (code 8483), machines and mechanisms for harvesting and threshing crops (code 8433), spare parts and aggregates for metalworking equipment (code 8466), pumps for liquids (code 8413), burners for solid fuel or gas (code 8416), equipment for filtering and cleaning liquids and gases (code 8421), woodworking machines (code 8465), spare parts for motor vehicles (code 8708), electrical transformers (code 8504)). The geographical vectors of strengthening bilateral trade in the studied countries are substantiated based on the assessment of the calculated trade complementarity index. It was proposed to use the world experience based on certain key promising areas of international trade development in the context of the COVID-19 pandemic.

It is indicated that one of the characteristic features of the modern trade system is the rapid growth of the number of regional trade agreements, which, in turn, causes asymmetry in the dominance of regional cross-border trade rules over multilateral ones. The main advantages for countries from participating in regional trade agreements have been identified: the possibility of excluding "vulnerable sectors" from the agreement; the ability to independently choose partners in negotiations; the use of the principle of "reciprocity" is more effective compared to the World Trade Organization, the possibility of forming the image of a regional leader; within the framework of such agreements, it is possible to carry out "experimental application" of certain new measures in the field of trade, which, if successfully tested, can be tried to be applied in general mode; the possibility of attracting more foreign investments by developing countries that are not regional leaders. After examining the degree of involvement of countries in concluding regional trade agreements for the presence of regional asymmetries, a significant difference was identified from the maximum involvement of the countries of the European region (on average 33.2 agreements per country) and the countries of Africa (2.7) and the Middle East (3.9). It is proposed that one of the vectors of the development of Ukraine's foreign economic policy should be the expansion of the scope of current and future regional trade agreements to the sphere of services, e-commerce and investments, given the potential, their compliance with the global trends of the trading system, as well as the ability of Ukraine to become a significant player in a number of markets for services and trade in digital products, taking into account the availability of an up-to-date legal framework on these issues. It was determined that 50% of Ukraine's commodity exports during 2016-2021 took place within the framework of the preferential regime provided for by key free trade agreements. According to the results of the proposed forecast of such exports for the period 2021-2023, using the method of time series analysis, it was confirmed that the corresponding dependence will only grow (export volumes within the framework of free trade agreements will grow by 3 percent annually, while total exports by 2%).

Purpose. To substantiate the theoretical principles and practical recommendations regarding the formation of the strategy of enterprises entering the market of data integration services in the conditions of Industry 4.0. Methodology. Research methods based on the principle of the unity of theory and practice were used in the research process, including: the historical-logical method (to study the evolution of market development and its trends); the analytical-statistical one (to determine the dynamics of market volumes); SWOT-matrix method analysis and DROC-analysis (to study the global market development of data integration services and to determine the company’s development scenarios in the market in the conditions of Industry 4.0); correlation-regression analysis (to study the dependence of marketing costs on net income of IT market leaders); taxonomic analysis (to systematize strategies used by market players under different conditions); qualitative research method (expert interview to analyze the state of the market and identify trends in its development). Findings. The state, conjuncture, key trends and drivers of the development of the data integration services market were comprehensively investigated, and the impact of Industry 4.0 was analyzed. The strategies of the leading players and possible scenarios for the development of companies on the market are determined. Originality. Empirical and theoretical research allowed us to propose directions for the implementation of digital-marketing technologies for enterprises to enter new b2b markets and to substantiate their strategies for entering the market of data integration services; in addition, to take into account the prospects for the development of this market in the post-war development of Ukraine. Practical value. The research results can be helpful to state authorities and researchers, applied in the functional activities of IT enterprises, namely, conclusions regarding the specifics and prospects for the development of the market of data integration services, its drivers, and their development strategies in turbulent times and the Fourth Industrial Revolution, directions for the implementation of technologies digital-marketing for entering new b2b markets, strategies and tactics for entering the data integration services market, in particular, when researching the global data integration services market and developing hybrid entry strategies.