CWTS Development

The CWTS Leiden Ranking 2026: final release of the Traditional Edition

Today, CWTS published the final release of the Traditional Edition of the CWTS Leiden Ranking. This post reflects on this special occasion. It also discusses the implications of ongoing developments in the scholarly communication system for the future of the Leiden Ranking.

Nees Jan van Eck, Mark Neijssel and Ludo Waltman • November 04, 2026

Science & Society

Tracking R&D funding in the Global South: challenges and opportunities in India

Understanding R&D funding is essential for strengthening research systems in the Global South. Drawing on India’s experience, Moumita Koley and Ismael Rafols explore how tracking research funding can reveal investment outcomes and misalignments between research priorities and societal needs.

Moumita Koley + 1 other • 02-11-2026

Focal Area: Evaluation & Culture

Strengthening research cultures

How can we foster a collaborative, fair, and healthy research culture that enables researchers and research communities to do their best work? This question lies at the heart of the new strategy of the CWTS Focal Area Culture & Evaluation for 2026–2028.

Culture & Evaluation • 31-08-2026

Focal Area: Evaluation & Culture · Opinion & Commentary

Who absorbs uncertainty? Publishing infrastructures and the organisation of research culture

Focusing on journal publishing as one key dimension of research culture, this blogpost compares Spain and Lithuania to show how infrastructures shape whether uncertainty in publication and recognition is distributed across multiple options or concentrated in global publication pathways.

Eleonora Dagiene + 1 other • 27-08-2026

Science & Society

The case for citation count ranges

Citation counts have a prominent role in bibliometrics, but do they really represent all citations of a document? Paul Donner shows the different ways in which citation counts can vary and proposes a method for presenting citation counts with more nuance: citation count ranges.

Paul Donner • 16-07-2026

CWTS Development

Scholarly communication as a collective responsibility

CWTS has developed a Scholarly Communication Policy that treats publishing as a collective responsibility rather than an individual choice. In this blog post, we introduce the policy, reflect on its co-creation, and invite other institutions to consider adopting a similar approach.

Wolfgang Kaltenbrunner + 2 others • 14-07-2026

Science & Society

In memoriam Caroline S. Wagner

Caroline S. Wagner (1955-2026) was a highly regarded scholar in the field of science and technology policy. Paul Wouters reflects on her impressive contributions to research on science policy, the globalization of research, international collaboration, and scientometrics.

Paul Wouters • 09-07-2026