Short answer: universities publish so much research because publication is how academic knowledge is recorded, evaluated, shared, funded, and rewarded.
Universities are not only teaching institutions. They are also research institutions. Their role is to create knowledge, test ideas, train researchers, attract funding, support innovation, and contribute to public understanding. Publishing is the formal mechanism that puts research into the scholarly record.
Why publication matters to universities
Published research helps universities show expertise. It affects reputation, rankings, grants, partnerships, recruitment, and influence. A university with strong publications can attract staff, students, donors, industry partners, and public funding.
Publication also matters inside academic careers. Researchers are often judged by their papers, citations, grants, and contribution to their field. This can encourage productivity, but it can also create pressure to publish frequently, sometimes at the expense of slower, riskier, or more careful work.
The good and bad incentives
There is a good reason to publish research: knowledge needs to be shared and criticised. Unpublished research cannot easily be checked, cited, replicated, or used. But publication pressure can distort priorities. It may encourage salami-slicing, exaggerated claims, fashionable topics, and a focus on quantity over quality.
The healthiest academic culture rewards important, careful, transparent work, not simply more papers. Universities publish a lot because research is central to what they do. The challenge is making sure volume does not become a substitute for value.