Research Data - Toward Sovereign Data Exchange Through a Meta-Platform for Data Marketplaces: A Preliminary Evaluation of the Perceived Efficacy of Control Mechanisms

This is supplementary material for the manuscript entitled "Toward Sovereign Data Exchange Through a Meta-Platform for Data Marketplaces: A Preliminary Evaluation of the Perceived Efficacy of Control Mechanisms." This study aims to evaluate the perceived efficacy of the control mechanisms to ensure data sovereignty in meta-platforms. The findings from a survey study (n=93) indicate that respondents perceive high data sovereignty. This study contributes to advancing design knowledge for meta-platforms, showcasing that meta-platforms can be designed in a way to resolve fragmentation without neglecting data sovereignty principles.