Thomas Krichel writes:
Research is published to advertize skills of the academic staff
of an institution. Institutions are in the business to maximise
attention to the research results that are produced locally. When
the library of institution buys access to a journal, over 90% of
the material in that journal will contain material coming from
other institutions, then it subsidizes attention to research
results from other instutions. You don't need a PhD in economics
to see that this makes no economic sense. A rational institution
will pay nothing for research produced elsewhere and will spend
all its efforts to make its results widely available.