Some research organizations feel particularly strongly about data sharing.
There is a slightly different data sharing policy for projects that involve genetic information.
In fact, many funding groups have already made various forms of data sharing mandatory.
Anonymous entity resolution to be used in data sharing arrangements.
Termination: What happens when the data sharing relationship is ended?
As a researcher, I can vouch for the importance of data sharing.
With data sharing on the Internet, there are questions of what is being revealed, and to whom, prior to publication.
All of that makes data sharing difficult under ideal circumstances.
While larger grants are required to address data sharing, I doubt it's often an important consideration in the review process.
The other aspect of data and materials sharing the authors consider is having the users pay for access.