John Slocum

Nonresident Senior Fellow, Global Migration

Areas of expertise: Global Immigration


John Slocum is an independent consultant and a nonresident associate senior researcher at the Barcelona Centre for International Affairs (CIDOB).

As a consultant to nonprofits and foundations, Slocum provides strategic planning, executive search, and board retreat facilitation services. He previously worked for 18 years at the John D. and Catherine T. MacArthur Foundation, where he served for a decade as the program director for MacArthur’s grantmaking initiatives on international migration and US immigration policy. Under his leadership, MacArthur provided over $50 million in support of research, policy analysis, and practical interventions aimed at improving the international governance of migration, enhancing understanding of the economic impacts of immigration, and strengthening protections for vulnerable migrants in the United States, Mexico, and around the world. Slocum also directed MacArthur’s Higher Education Initiative in Russia and its Research and Writing Grants Competition.

Slocum has published articles and commentary on migration, philanthropy, and Russian history. He taught political science at the University of Oklahoma and has held visiting positions at CIDOB (in Barcelona), the University of Toronto, the Maecenata Institute for Philanthropy and Civil Society (in Berlin), and the Blavatnik School of Government at Oxford University. A past board member of Grantmakers Concerned with Immigrants and Refugees, Slocum currently serves on the advisory board of Justice in Motion, a New York-based nonprofit that works to protect migrants’ rights across borders. He has a PhD in political science from the University of Chicago.

In the News

Vulnerable, Vilified, and Essential: Immigrants, Refugees, and Asylum-Seekers during COVID-19

Global Insight, May 4, 2020

The Global Compact for Migration: International Cooperation Amidst a Nationalist Disinformation Campaign

Global Insight, December 13, 2018

The Indispensable Role of Cities in Migration Governance

Global Insight, May 29, 2018

Pragmatism from the Heartland, Five Years On: Revisiting the Midwest Immigration Task Force

Global Insight, February 27, 2018

Migration and Refugees at the UN toward New Global Compacts and the Emergence of an International Migration Regime

Barcelona Centre for International Affairs, July 1, 2017

The Transnational Diffusion of Populism

Barcelona Centre for International Affairs, April 1, 2017

False Assumptions Underlie Trump’s Executive Orders on Immigrants and Refugees

Barcelona Centre for International Affairs, February 1, 2017