The role of big data in ensuring transparency and accountability of public authorities

The study is aimed at highlighting the theoretical and practical aspects of the use of big data in the public administration system on the example of Ukraine. The study used various works of scientists dedicated to the study of the peculiarities of using big data in the public administration system. The results of global rankings (Open Data Barometer; Global Government Forum) and data from the information and analytical agency Statista were also used. Economic and statistical analysis methods were used to achieve the research objective. These methods helped to determine the volume of global big data market revenue since 2011 with a forecast for 2025-2027, the share of global big data market revenue since 2013 with a forecast for 2025-2027 by major segments, and Ukraine’s rating of open data development in 2015-2017. The methods of schematic and graphical display of data were also used to visualize the theoretical and practical foundations of the study. The method of logical generalization of the results was used to formulate conclusions. Moreover, the methods of systematization and comparison, induction and deduction were used. The study outlined the main opportunities for using big data in public administration. This includes accelerating and improving management processes, increasing transparency, reducing costs, and promoting the development of platforms for analyzing public finances, public procurement, and other important areas.