attractive to students who then demand them from their universities.
They also partner with service providers who build atop the CC-licensed
content and, in turn, spend money and
-
resources marketing those services (and by extension, the OpenStax
textbooks).
directly tied to the value they generate, where the recipient is paying
for the value they receive like any standard market transaction. In
still other
-
cases, rather than the quid pro quo exchange of money for value that
typically drives market transactions, the recipient gives money out of a
sense of reciprocity.