Dr. Mitja Kleczka is a Visiting Professor of Economics at Kutaisi International University (KIU), a Partner at Solve Economics GmbH, and affiliated with the Vrije Universiteit Brussel (VUB). At KIU, he teaches microeconomics, macroeconomics, and econometrics.

As an economist, he advises companies on complex issues in competition economics, including antitrust and abuse of dominance cases, mergers and cooperation agreements, and matters relating to regulated markets. He has more than ten years of experience as an economic consultant and has been a Partner at Solve since 2026. Based in Hamburg and Brussels, he supports clients across the European Economic Area in a wide range of industries, including digital markets, the agrifood supply chain, and telecommunications.

Alongside his advisory practice, Mitja Kleczka conducts independent research at the VUB and the Brussels Center for Competition Policy (BCCP). His research spans competition economics and European integration, with a particular focus on digital antitrust and the defence sector. He also contributes regularly to debates on competition policy at both national and EU levels, including through his involvement with the BCCP, the Competition Litigation Forum (C-L-F), and the Studienvereinigung Kartellrecht.

His work has been published in peer-reviewed academic journals, including the Journal of Regulatory Economics, the Journal of European Competition Law & Practice (JECLAP), Defence and Peace Economics, Defense & Security Analysis, European Defence & Security Law & Policy Quarterly (EDSeQ) and the Economics of Peace and Security Journal. He is also the co-author of a book on dominance in food retail.

He holds a PhD in Economics from the VUB, an MSc in International Economic Consulting from Aarhus University, and an MSc in Economics and Management from the University of Hannover.