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International Relations: Our Faculty
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Nadège Ragaru
CNRS Research Professor
nadege.ragaru@sciencespo.fr
Research Interest(s): History and historiography of World War II and of the Holocaust in Southeastern Europe, historical sociology of communism and identities, arts and politics
Discipline(s): Political Science, History
Subdiscipline(s): Political Sociology, Comparative Politics, International Relations
Research Group(s): Art, humanities, and international research, State, political regimes, mobilisations, Nationalism, religion, identity and discrimination, Violence, war and peace, Environmental risks and planetary limits, Science, technology and power
Geographical Area(s): Balkans, Central and Eastern Europe
Country(ies): Bulgaria, Greece, North Macedonia, Serbia
Language(s): English, Bulgarian, Macedonian, German, Serbian, Russian, Romanian, Hebrew

Frédéric Ramel
Professor, Head of the Department of Politial Science
frederic.ramel@sciencespo.fr
Research Interest(s): International organizations and multilateralism, international security, contemporary strategic concepts, art and international relations
Discipline(s): Political Science
Subdiscipline(s): International Relations, Political Theory
Research Group(s): International order, foreign policy, diplomacy, Violence, war and peace, Art, humanities, and international research
Geographical Area(s): Global realm
Language(s): English
Juliette Refle
PhD Candidate
juliette.refle@sciencespo.fr
Discipline(s): Political Science
Subdiscipline(s): Political Sociology, International Relations
Research Group(s): Migrations, diasporas, borders, cities and territories, Environmental risks and planetary limits
Geographical Area(s): West Africa
Country(ies): Benin, Nigeria
Thesis topic:
Expériences ordinaires des changements climatiques : mobilisations, adaptations, contestations dans les quartiers littoraux urbains de Lagos (Nigéria) et Cotonou (Bénin), supervised by Laurent Fourchard
Éric Repetto
PhD Candidate
eric.repetto@sciencespo.fr
Discipline(s): Political Science
Subdiscipline(s): International Relations, Political Theory
Research Group(s): Science, technology and power
Geographical Area(s): Global realm
Thesis topic:
Sovereignty practices in the interactions between states and digital platforms, supervised by Thierry Balzacq

Jeanne-Louise Roellinger
PhD Candidate
jeannelouise.roellinger@sciencespo.fr
Research Interest(s): Arms control, norms of responsible behavior, cyberspace, outer space, uncertainty
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): Security, defence, nuclear weapons, Science, technology and power
Geographical Area(s): Global realm
Language(s): French, English, Hebrew
Thesis topic:
The Security Dilemma in the Information Age of Uncertainty, supervised by Ariel Colonomos

Marlène Rosano-Grange
Associate Research Fellow, HDR
marlene.rosanogrange@sciencespo.fr
Research Interest(s): Green finance, agriculture, price stability, regulation, scale, European Union, Global South
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): Global economy, capitalism, extraction, International order, foreign policy, diplomacy
Geographical Area(s): Global realm , North America, Western Europe
Country(ies): France, United States of America
Language(s): French, English, Spanish
Thesis topic:
Revisiter l'histoire de la Construction européenne : le poids des structures et des conjonctures internationales, supervised by de Guillaume Devin

Chiara Ruffa
Professor
chiara.ruffa@sciencespo.fr
Research Interest(s): Peacekeeping, Multilateralism, Fieldwork, Military Organizations, Norms, Cultures, Global hierarchies
Discipline(s): Political Science
Subdiscipline(s): International Relations, Political Sociology
Research Group(s): International order, foreign policy, diplomacy, Security, defence, nuclear weapons, Violence, war and peace
Geographical Area(s): Caucasus / Central Asia, Central Africa, Middle East, West Africa, Western Europe
Country(ies): Afghanistan, Central African Republic, France, Italy, Lebanon, Mali
Language(s): French, English, German, Italian, Swedish

Miguel Ángel Salazar Urrutia
Associate Research Fellow
miguel.salazar@sciencespo.fr
Research Interest(s): Environmental commons governance, Rights of nature and international conservation, Collective governance regimes in Antarctica, Role of non-state actors in international dynamics, Sociopolitics of cooperation in planetary spaces.
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): Environmental risks and planetary limits, Science, technology and power, International order, foreign policy, diplomacy
Geographical Area(s): Arctic / Antarctica, Central and Eastern Europe, Latin America and the Caribbean, North America, Southern Africa, Russia, Western Europe
Language(s): Spanish, French, English
Thesis topic:

Eugenio Sánchez
PhD Candidate
eugenio.sanchez@sciencespo.fr
Research Interest(s): Economic Statecraft, Industrial Policy, Global Value Chains, International Trade, Foreign Direct Investment (FDI), Foreign Policy
Discipline(s): Political Science
Subdiscipline(s): International Relations, Comparative Politics, Political Economy
Research Group(s): Global economy, capitalism, extraction, International order, foreign policy, diplomacy
Geographical Area(s): Central and Eastern Europe, Global realm , Latin America and the Caribbean, Western Europe
Country(ies): France, Germany
Language(s): Czech, French, English, Portuguese
Thesis topic:
Comparative Economic Statecraft: How State-Business Relations Shape Modern Great Power Competition, supervised by Hugo Meijer

Laurie Servières
Associate Research Fellow
laurie.servieres@sciencespo.fr
Research Interest(s): Slum/informal settlements policies, up-grading and housing approaches; Sustainable development policies in Latin America and implementation of the 2030 Agenda ; Risk mitigation in cities and slums ; Colombian peace process and its implementation
Discipline(s): Political Science
Subdiscipline(s): International Relations, Public Policy
Research Group(s): International order, foreign policy, diplomacy, Migrations, diasporas, borders, cities and territories
Geographical Area(s): Latin America and the Caribbean
Country(ies): Brazil, Colombia
Language(s): French, English, Portuguese
Thesis topic:
L'internationalisation de la question des "bidonvilles" et ses effets sur l'action publique en Colombie et au Brésil, supervised by Guillaume Devin & Carlos Milani

Jérôme Sgard
Full Professor
jerome.sgard@sciencespo.fr
Research Interest(s): History of the IMF, history of the "second globalization", history of global commercial arbitration and history of economic policies.
Discipline(s): Economics
Subdiscipline(s): Political Economy, International Relations
Research Group(s): Global economy, capitalism, extraction, State, political regimes, mobilisations
Geographical Area(s): Global realm

Ricardo Soares de Oliveira
Full Professor
ricardo.soaresdeoliveira@sciencespo.fr
Research Interest(s): International political economy of African states with a focus on the extractive industries, the financial sector, conflict and post-conflict reconstruction, and African-Asian relations
Discipline(s): Political Science, Economics
Subdiscipline(s): Political Economy, International Relations, Comparative Politics
Research Group(s): Global economy, capitalism, extraction, International order, foreign policy, diplomacy, State, political regimes, mobilisations
Geographical Area(s): Central Africa, East Africa and The Horn, Southern Africa, West Africa

Sarah Tegas
PhD Candidate
sarah.tegas@sciencespo.fr
Research Interest(s): Negotiation, transnational climate governance, UNFCCC, small states
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): International order, foreign policy, diplomacy, Environmental risks and planetary limits, Art, humanities, and international research
Geographical Area(s): Global realm , Latin America and the Caribbean, Oceania
Language(s): French, English, Italian
Thesis topic:
Beyond coalitions: Small states in international climate negotiations, supervised by Carola Klöck

Hélène Thiollet
CNRS Junior Professor
helene.thiollet@sciencespo.fr
Research Interest(s): Migration policies in the South, global governance of mobilities.
Discipline(s): Political Science, Geography
Subdiscipline(s): Comparative Politics, International Relations
Research Group(s): Migrations, diasporas, borders, cities and territories, International order, foreign policy, diplomacy, State, political regimes, mobilisations, Nationalism, religion, identity and discrimination
Geographical Area(s): East Africa and The Horn, Global realm , Middle East
Language(s): English, Arabic, Spanish, French
Thesis topic:
Migrations et intégrations dans le Sud de la mer Rouge : migrants et réfugiés érythréens dans le monde arabe 1991-2007 sous la direction du Pr Bertrand Badie.

Virginie Troit
Associate Research Fellow
virginie.troit@sciencespo.fr
Research Interest(s): Ethics, Governance, Multilateralism, Standards, International organisations, Transnational networks, Civil society
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): Art, humanities, and international research, International order, foreign policy, diplomacy, Violence, war and peace
Geographical Area(s): Central Africa, East Africa and The Horn, Global realm , Middle East, West Africa
Language(s): French, English, German, Spanish, Arabic (Moroccan)
Thesis topic:
Normes humanitaires et organisations humanitaires du Sud : les enjeux de l’autorégulation. Expériences de la norme ECCO de la Fédération internationale des sociétés de la Croix-Rouge et du Croissant-Rouge en Afrique (2009-2019), sous la direction de Frédéric Ramel

Tom Vaughan
Associate Researcher
t.p.vaughan@leeds.ac.uk
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): Security, defence, nuclear weapons
Geographical Area(s): Southern Africa, Global realm
Anaëlle Vergonjeanne
Associate Research Fellow
anaelle.vergonjeanne@sciencespo.fr
Research Interest(s): Childhood and youth, Feminism, Vulnerability, International cooperation, Climate and environment
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): International order, foreign policy, diplomacy, Environmental risks and planetary limits
Geographical Area(s): Global realm
Language(s): French, English
Thesis topic:
Repenser les vulnérabilités climatiques : la turbulente participation des enfants dans la coopération internationale, supervised by Frédéric Ramel

Lukas Wahden
PhD Candidate
lukas.wahden@sciencespo.fr
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): International order, foreign policy, diplomacy, Environmental risks and planetary limits, Security, defence, nuclear weapons
Geographical Area(s): Arctic / Antarctica, Seas and Oceans, Central and Eastern Europe, Caucasus / Central Asia, Global realm
Country(ies): China, Russian Federation
Language(s): German, English, French, Russian, Chinese, Spanish, Danish
Thesis topic:
‘Osvoenie’ beyond sovereignty: Russia’s policies towards the polar regions, high and deep sea, and outer space, supervised by Hugo Meijer and Marlène Laruelle

Earl Wang
Associate Researcher
earl.wang@sciencespo.fr
Research Interest(s): EU and Member States, East Asia, the PRC, grand strategy, foreign and security policy
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): International order, foreign policy, diplomacy, Science, technology and power, Security, defence, nuclear weapons
Geographical Area(s): East Asia, European Union, Western Europe, Central and Eastern Europe
Thesis topic:
European Union Foreign Policy towards the People’s Republic of China (2013‑2019): Formulation of a Grand Strategy? sous la direction de/supervised by Christian Lequesne

Corneel Weyers
PhD Candidate
corneel.weyers@sciencespo.fr
Research Interest(s): Decolonialism, diplomacy, democracy, populism, capitalism
Discipline(s): Political Science
Subdiscipline(s): International Relations
Research Group(s): International order, foreign policy, diplomacy, Nationalism, religion, identity and discrimination
Language(s): Dutch, French
Thesis topic:
The impacts of populism on diplomatic policymaking, supervised by Christian Lequesne & Leslie Wehner
