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The Reverse Banzhaf and Shapley - Shubik Index for SMEs in Slovak Medical Labs

Zuzana Čičková, Monika Ferenčáková, Peter Pe»ko

Prague Economic Papers 2026, 35(1):97-120 | DOI: 10.18267/j.pep.905

This study examines the potential for cooperation between traditionally competitive small and medium-sized enterprises (SMEs) in the sector 86901 - Medical laboratory services in Slovakia as a strategy to enhance competitiveness in the face of large market players. By building coalitions, SMEs can overcome natural disadvantages, such as limited economies of scale, a lack of capital, or limited access to innovation. In this article, we will focus on the possibilities of applying the Banzhaf and Shapley - Shubik indices, as well as their reverse interpretation, to quantify the individual strength of a player within potential coalition groupings, with an emphasis on Slovak SMEs. The quantification of the indices considers key regulatory elements, including compliance with antitrust laws, and these legal frameworks are crucial for promoting fair competition while enabling SMEs to reap the benefits of cooperation.