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Purpose: This paper is to prove empirically cooperative business structure, conflict control capability, blockchain platform complementarity will have positively impacts on the blockchain platform selection for 78 blockchain platform selection cases. Since past researches have been insufficient regarding blockchain platform selection, it is meaningful to make an empirical research on the blockchain platform selection of complementors which has not been performed. Research design, data, and methodology: I collected survey responses as blockchain platform selection cases from 78 members in the Government Blockchain Association (GBA) which is an international nonprofit professional association with its headquarters located in Fairfax, Virginia. In this statistical study, whether or not to select the blockchain platform is used as a dependent variable. Three independent variables are used. They are cooperative business structure, conflict control capability of blockchain platform leaders and complementarity of blockchain platforms. Results: I applied binary logistic regression analysis for the platform selection. I proved the empirical research model for the blockchain platform selection of complementors by cooperative business structure and conflict control capability of a blockchain platform leader and complementarity of a blockchain platform by analyzing binary logistic regression with the data from GBA members who are potentially or currently operating blockchain related businesses. Conclusions: The blockchain platform, which includes specific transaction records and distributed ledgers for certain time periods, can be defined as (1) a core asset in a blockchain ecosystem, (2) a common basic asset, (3) an asset possibly generating derivative content and services, such as complements, (4) the hub in the value chain in blockchain technology-based businesses, and (5) an asset with blockchain technology. Blockchain can generate various complements within the context of platform leadership. This means blockchain can show the characteristics of complementarity. They bring about network externality and lock-in effect regarding platform leadership. Blockchain technology innovation is beneficial for production efficiency, cost reduction, and lowering prices. Blockchain can also be defined as the adjustment of existing approved transactions and the catalyst for derivative service providers as complementors. Blockchain platforms should catalyze the blockchain ecosystem for platform leaders and complementors so that ecosystem stakeholders can form competitive and cooperative relationships with blockchain platform leaders.
