Inside National University of San Marcos's largest research partnership: Yunnan University

Behind National University of San Marcos's research output sits a defining relationship: 477 co-authored works with Yunnan University (China) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 692 collaborating institutions across 64 countries, producing 17,850 joint works over the window, with international co-authors on 23% of output.

The collaborative work travels: its field-weighted citation impact stands at 0.69, where the world average is 1.0.

The Research Collaboration Index, the first global account of how universities actually collaborate, publishes its first full edition on Tuesday 15 September at 09:00 UK.

Every figure derives from the open global research record and is checkable at source.