• International economic relations
• International competitiveness
• Regional and local innovation development
• International business environment, including the EU
• Doing business in the EU (market segments and business strategies)
• European integration studies

• EU research and innovation, enterprise, competition, energy, and external commercial policies

Profiles in international scientometric databases

• Scopus ID: 58296603600 
• Web of Science ID: I-7453-2018
• ORCiD ID: 0000-0002-1043-1184
• Google Scholar
• National Library of Ukraine named after V.I. Vernadsky

Author of over 110 scientific papers, co-author of 4 monographs, 5 text-books. 12 papers published abroad (USA, Canada, UK, Poland).

Publications in periodicals included in the list of of professional journals of Ukraine, in scientometric databases, including Scopus, Web of Science, Core Collection :

• Fedirko O., Kravchuk D., Khrapatyi S., Berezovska N., Budzyn V. The Influence of Investments in Science and Technology on the Innovative Development of the Global Economic System. Economic Affairs. 2024. Vol. 69 (Special Issue). P. 95-106. URL: https://ndpublisher.in/admin/issues/EAv69n1l.pdf (Scopus)
• Fedirko O., Herman L., Kostyk Y., Shkoda M., Sokhan I. Assessment of the Impact of Globalization on the Regional Development of Innovation Cluster. AD ALTA: Journal of Interdisciplinary Research. 2024. Vol.14, Issue 1, Special XXXIX. Pp. 162-166. URL: https://www.magnanimitas.cz/ADALTA/140139/papers/A_32.pdf (Web of Science)
• Chuzhykov V., Fedirko O., Chuzhykov A. Methodological Background of post-Soviet regionalism: the case of Ukraine. TalTech Journal of European Studies, Tallinn University of Technology. 2014. Vol. 4. No. 1 (16). P. 20‑33. URL: https://doi.org/10.2478/bjes-2014-0002 (Web of Science) 
• Fedirko O. Key Trends and Problems of Regional Innovation Systems' Development in Poland and Ukraine. Central European Business Review. 2014. №3(3). P. 38-45. URL: http://cebr.vse.cz/cebr/article/view/145
• Fedirko O. Strategic priorities of modernization of Ukrainian economy in after-crisis period. Nierównosci spoleczne a wzrost gospodarczy. Zeszyt Nr 26 / Redakcja naukowa: Prof. zw. dr hab. Michal Gabriel Wozniak. Rzeszów: Wydawnictwo Universytetu Rzeszowskiego, 2012. S. 136-146.
• Fedirko O.A., Chuzhykov V.I. Aviation Alliances in the Global Competitive Model of the XXIst century. Nierównosci spoleczne a wzrost gospodarczy, Zeszyt Nr 17 / Redakcja naukowa: Prof. dr hab. Michal Gabriel Wozniak. Rzeszów: Uniwersytet Rzeszowski, Katedra Teorii Ekonomi i StosunkowMiedzynarodowych, 2010. S. 76 – 87.
• Fedirko O. Innovation Determinants of Social and Economic Cohesion in the European Union. Nierównosci spoleczne a wzrost gospodarczy. Zeszyt Nr 12 / Redakcja naukowa: Prof. zw. dr hab. Michal Gabriel Wozniak. Rzeszów: Uniwersytet Rzeszowski, Katedra Teorii Ekonomi i Stosunkow Miedzynarodowych, 2008. S. 435-447.
• Fedirko O., Chuzhykov V., Ilnytsky D., Dualism of Monetary, Technological and Information Determinants in the Social Development of EU. Nierównosci spoleczne a wzrost gospodarczy. Zeszyt Nr 11 / Redakcja naukowa: Prof. zw. dr hab. Michal Gabriel Wozniak. Rzeszów: Uniwersytet Rzeszowski, Katedra Teorii Ekonomii, 2007. S. 79-98.

Recent publications in Ukrainian language:

• Fedirko O.A., Fedirko N.V., Vasyuk N.O. EU Financial Instruments for Environmental Development. Problems of Economy. 2023. No. 4. P. 248–256. URL: https://doi.org/10.32983/2222-0712-2023-4-248-256 (In Ukrainian).
• Fedirko O.A. Development of Digital Trade in Global Markets: Financial and Innovation Aspects. Journal of Strategic Economic Research. 2023. No. 5(16). P.45-52. URL: https://doi.org/10.30857/2786-5398.2023.5.5 (In Ukrainian).
• Fedirko O.A., Fedirko N.V. Public procurement policy in the implementation of the digital transformation strategy: priorities for the EU and Ukraine. Problems of economy. 2023. No. 3. P.31–41. URL: https://doi.org/10.32983/2222-0712-2023-3-31-41  (In Ukrainian).
• Fedirko O.A., Fedirko N.V. Digital prospects of financial control in combating political corruption in Ukraine. Investments: practice and experience. 2022. No.5-6. P.30–37. URL: https://doi.org/10.32702/2306-6814.2022.5-6.30 (In Ukrainian).
• Chuzhykov V.I., Fedirko O.A. Localism against globalism (European methodological case). Regional economy. 2021. No. 4(102). P.44-56. URL: https://doi.org/10.36818/1562-0905-2021-4-6 (In Ukrainian).
• Fedirko O.A., Fedirko N.V. Evolution of EU innovation policy. International Economic Policy. 2021. No. 2 (35). P.75-98. URL: http://iepjournal.com/journals/35/2021_35_4_Fedirko.pdf (In Ukrainian).
• Fedirko O.A., Fedirko N.V. Directions and tools for reforming public administration systems in the EU. Public administration: improvement and development. 2019. No. 12. URL: http://www.dy.nayka.com.ua/?op=1&z=1533 (In Ukrainian).

Copyrights

• Green and Safe European Union: monograph / [A.O. Boyar, I.V. Kytsyuk, N.I. Romanyuk, O.A. Fedirko, V.I. Chuzhykov et al.]; Edited by A.O. Boyar, V.Y. Lazhnik. Lutsk: Vezha-druk, 2023. 592 p.; ref. №122956 dated January 17, 2024.
• European Union: text-book / [A.O. Boyar, N.P. Karpchuk, N.I. Romanyuk, O.A. Fedirko, V.I. Chuzhykov et al.]; Edited by A.O. Boyar, S.V. Fedonyuk. Kyiv: FOP Maslakov, 2020. 600 p.; ref. №113931 dated July 26, 2022.

Monographs

• Fedirko O., Fedirko N. Clustering National Innovation Capability: Positioning of Ukraine, in "The Framework for Resilient Industry: A Holistic Approach for Developing Economies Kumar", N., Sood, K., Özen, E. and Grima, S. (Ed.) (Emerald Studies in Finance, Insurance, and Risk Management), Emerald Publishing Limited, Leeds, 2024. Pp. 1-21. https://doi.org/10.1108/978-1-83753-734-120241001 (Scopus)
• Fedirko O., Fedirko N. Digital Economy Taxation Reform in Ukraine Under Conditions of Military Threats, in "Contemporary Studies of Risks in Emerging Technology", Part B (Emerald Studies in Finance, Insurance, and Risk Management) / Under edition of S. Grima, K. Sood, E. Özen. Bingley: Emerald Publishing Limited, 2023. P. 257-274. URL: https://doi.org/10.1108/978-1-80455-566-820231014 (Scopus).
• Fedirko O.A. Innovation trends of European regions’ development, in "Intellectual Challenges to Economic Globalism" Under Ed. R. Djakons and D. Lukianenko. Riga, 2020, Pp. 223-241.
• Fedirko O.A., Chuzhykov V.I., Fedirko N.V. The Model of Compensatory Economic Growth, in "Convergence and Divergence in Europe: Polish and Ukrainian Cases" / Ed. by Victor Chuzhykov, Dmytro Lukianenko, Michal Gabriel Wozniak. Kyiv: KNEU, 2013. Pp. 324-349.
• Fedirko O.A., Chuzhikov V.I. Consumer protection and food safety, in "Green and safe European Union: monograph" / [A.O. Boyar, I.V. Kytsyuk, N.I. Romanyuk et al.]; Edited by A.O. Boyar, V.Y. Lazhnik. Lutsk: Vezha-druk, 2023. P. 263-274 (In Ukrainian).
• Fedirko O.A., Chuzhikov V.I. Energy, in "Green and safe European Union: monograph" / [A.O. Boyar, I.V. Kytsyuk, N.I. Romanyuk et al.]; Edited by A.O. Boyar, V.Y. Lazhnik. Lutsk: Vezha-druk, 2023. P. 150-167  (In Ukrainian).
• Fedirko O.A. Theory and practice of localization of innovative business activities in the EU: monograph. Kyiv: KNEU, 2017. 528 p. (In Ukrainian).

Popular science and/or scientific and expert publications on scientific or professional topics, conference proceedings and abstracts

• Fedirko O., Fedirko N. Digital competencies in Ukraine under martial law: challenges and achievements in tertiary education. Education Disrupted: Universities in a Time of War. International scientific and practical conference (Kyiv, KNEU, February 23, 2023).
• Fedirko O. A., Fedirko N. V. Gender stereotypes in the educational policy of Ukraine in the context of European integration. Principles of gender equality and non-discrimination as European integration guidelines in the sphere of higher education: Proceedings of the International conference dedicated to the International Women's Day in Science (February 14, 2023) / Editors: Kozhura L.O., Ilikchieva K.I., Bohdanets A.V. Kyiv: KNEU, 2023. P. 144-147. (In Ukrainian).
• Fedirko O., Fedirko N. Taxation reform of the digital economy in Ukraine under military threats. Economic security in the Global environment : lnternational Conference (June 29-30, 2022). Kyiv: KNEU, 2022. P. 128-135 (In Ukrainian).
• Fedirko O.A. Implementing the results of economic research in teaching the European business-environment course. Contemporary teaching and research in Ukraine’s universities: challenges, solutions, and perspectives : Conference proceedings, University of Bialystok, Faculty of Education (November 18th 2021). Bialystok: University of Bialystok, 2022. P. – 64-74.
• Fedirko O.A., Nesterenko A.Y. Positioning of Ukraine in the European market of high-tech products. Determinative research in the modern world of economics: collection of materials of the scientific-practical conference (Zaporizhzhya, January 15, 2022) / East Ukrainian Institute of Economics and Management. Zaporozhye: NGO "SIEU", 2022. P. 48-52 (In Ukrainian).
• Fedirko O.A. Clustering in Europe: experience and perspectives for Ukraine. Sustainable development strategy: globaltrends, national experiences and new goals: Proceedings of The First International Scientific Conference (December 10-11, 2021), Volume I. Mingachevir, Azerbaijan: Mingəçevir Dövlət Universiteti, 2021. P. 54-57.
• Fedirko O. A. Modern methodological discourse in the study of regional innovative development in the EU. ¿Administrative-territorial vs economic-spatial borders of regions?: proceedings of the international scientific-practical conference (March 19-20, 2020). Kyiv: KNEU, 2020. P. 41-46  (In Ukrainian). 
• Fedirko O.A. Complementary model of support for innovative entrepreneurship in the EU. European integration resource for the development of global entrepreneurship [Electronic resource]: Collection of proceedings of the discussion platform; May 17, 2019 / Edited by A.M. Poruchnyk — Kyiv: KNEU, 2019. P. 60-61 (In Ukrainian).
• Fedirko O., Chuzhykov A. Strategic Trends of the Ukrainian Media Products Intervention to the European Market. International Relations 2019: Current issues of world economy and politics : Proceedings of scientific works from the 20th International Scientific Conference in Smolenice Castle (28th - 29th November 2019). P. 256-265.