Three blogs deep, there's a link to the actual paper.[1] It's a study of one project, a geospatial database:<p><i>"Starting in 2009, the Global Facility for Disaster Reduction and Recovery (GFDRR) and its partners developed GeoNode: web-based, open source software that enables organizations to easily create catalogs of geospatial data, and that allows users to access, share, and visualize that data. Today, GeoNode is a public good relied on by hundreds of organizations around the world ...
GFDRR’s direct and in-kind investment in GeoNode over the past six and a half years has been in the range of $1.0–$1.5 million USD. Partners have also made significant investments in GeoNode; a conservative estimate of these partner investments comes to approximately $2 million USD over the same time period.
GFDRR’s investment in GeoNode would be a reasonable amount even viewed strictly as a software development cost: the GeoNode software today represents an approximately 200% return on investment in terms of code written, since thh current GeoNode project would most likely have cost $2.0 – 3.0 million USD if GFDRR had produced it alone as proprietary software, without building an open source community around the codebase."</i><p>This is an unusual situation; many people need geospatial databases, and contributing their local data is useful to them. The value here is in the data, not the code. This is more like Open Street Map than a software package.<p>[1] <a href="https://opendri.org/wp-content/uploads/2017/03/OpenDRI-and-GeoNode-a-Case-Study-on-Institutional-Investments-in-Open-Source.pdf" rel="nofollow">https://opendri.org/wp-content/uploads/2017/03/OpenDRI-and-G...</a>