Operational transparency of the Spanish autonomous communities through their open data portals

Once open data initiatives are consolidated worldwide, it is important to find out if the Spanish regional open data portals are useful for active transparency. To this end, we developed an indicator to assess the existence of information and its reusable quality in three periods of time (2013, 2015 and 2018). Then, we inquired about the existence of differentiated groups of regional governments using, when necessary, cluster analysis. We found indications that there are two conglomerates of governments: advanced and lagged. These findings are in line with those offered by two opposing views on the dissemination of information from the public sector: agency and neo-institutional theories.