Global North Supplies Most Evidence Cited in Policies Worldwide

Governments worldwide claim to base decisions on solid evidence, yet the origins of that evidence remain opaque. Researchers examined every reference in more than 1.2 million policy documents, spanning everything from health guidelines to trade regulations. The dataset covered 185 countries and included 3.5 million scholarly works and 740 000 policy sources such as reports from international agencies, think‑tank briefs, and government studies.

The numbers tell a clear story. When a policy draft from a Southern nation quoted an external source, that source was overwhelmingly produced in the Global North—countries traditionally classified as economically advanced, including the United States, European Union members, Canada, Japan and Australia. This pattern held across policy domains, from climate action to education reform, indicating a systemic bias toward Northern research outputs.

The concentration of citations suggests that a small group of nations dominate the global policy knowledge ecosystem. Scholars and officials in the Global South appear to depend on research that is more visible, digitally accessible, or perceived as more credible because of its origin. The study does not assess the quality of the cited work, only its geographic provenance, but the imbalance raises questions about diversity of perspectives in policy formulation.

Implications are twofold. First, reliance on Northern evidence may limit the relevance of policies to local contexts, especially when socioeconomic conditions differ sharply. Second, the finding underscores persistent asymmetries in academic publishing, data availability, and funding that favor Northern institutions. Addressing these gaps could involve expanding open‑access platforms, supporting Southern research networks, and encouraging policymakers to seek region‑specific studies.

What to watch next: upcoming initiatives by international bodies to diversify evidence sources and the impact of new open‑data mandates on citation patterns in developing‑country policy documents.