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Knowledge4Policy
Knowledge for policy

Supporting policy with scientific evidence

We mobilise people and resources to create, curate, make sense of and use knowledge to inform policymaking across Europe.

  • Joined 28/11/2025

Johan Christensen

Associate Professor

Associate professor at Leiden University who researches science for policy from a public administration perspective.

I am an Associate Professor at the Institute of Public Administration at Leiden University. My research focuses on the role of experts and expertise in bureaucracies and public policy-making, both at the national and European levels. I am particularly interested in the organization of science-for-policy arrangements in public organizations and the influence of expert advice in policy-making.

At Leiden University, I co-direct the ‘Power of Evidence’ Research Programme and the international research project “INFLUEX: The influence of experts on public policy”. I recently published a book on 'Expertise, Policy-making and Democracy' (with C. Holst and A. Molander, Routledge, 2022). 

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