Research
My academic work encompasses over 80 publications, including books, journal articles, chapters, and policy reports for international organisations and think tanks. I have published in many of the leading journals in European, International, and Migration Law, as well as in Migration Studies more broadly. My work examines Migration Law as a key aspect of globalisation and the processes of inclusion and exclusion. I am recognised as one of the leading international authorities on international migration law and the foremost expert globally on comparative Nationality and Migration Law in Latin America. Since 2018, I have also been engaged in the study of free movement of people regimes worldwide. This has now become my primary area of research, and the Freemove project can be accessed here.
Written Books
The National versus the Foreigner in South America. 200 Years of Migration and Citizenship Law
The Long-Term Residence Status as a Subsidiary Form of EU Citizenship
Global Migration. Old Assumptions, New Dymamics
EU Security and Justice Law. After Lisbon and Stockholm
EU Immigration Law (Text and Commentary)
How to Navigate Academia: 33 Short and Actionable Lessons to Succeed
Migration and Nationality Law in Latin America
Turning the Immigration Policy Paradox Upside Down? Populist Liberalism and Discursive Gaps in South America
Political and Legal Responses to Human Mobility in South America in the Context of the Covid-19 Crisis
Expanding the Reflexive Turn in Migration Studies: Refugee Protection, Regularization, and Naturalization in Latin America
La emigración venezolana: respuestas latinoamericanas
Migrantes o Refugiados. La Declaración de Cartagena y los Venezolanos en Brasil
Global Migration Law and Regional Free Movement
Open Borders in the Nineteenth Century. Constructing the National, the Citizen and the Foreigner in South America
Free Movement in South America: The Emergence of an Alternative Model?
Towards a South American Citizenship? The Development of a New Post-national form of Membership in the Region
Discursos y Políticas de Inmigración en Sudamérica: ¿Hacía un Nuevo Paradigma o la Confirmación de una Retórica sin Contenido?
Three generations of free movement of regional migrants in Mercosur: any influence from the EU?
Regional governance of migration in South America
Beyond Smoke and Mirrors? Discursive gaps in the liberalisation of South American immigration laws
Rethinking attractiveness: The Case of South America
Unofficial English Translation of the MERCOSUR Residence Agreement
Regional Report on Citizenship: The South American and Mexican Cases
Immigrants and Outsiders
Regional Governance of Migration in South America (second edition 2023)
La Ley Argentina de Migraciones en Perspectiva Comparada: Contexto, Influencia y Desafíos
La construcción del nacional, del ciudadano y del extranjero en América del Sur en el siglo XIX
Acuerdo de Residencia MERCOSUR y Regularización en Argentina: La Ilegalidad de la Aplicación del Artículo 29 de la Ley de Migraciones a los Nacionales de Países de América del Sur
Migration Policy Regimes in Latin America and the Caribbean
EU Citizenship and EU Immigration Law
Trapped in the Lobby. Europe’s Revolving Doors and the Other as Xenos
Civic Citizenship Reintroduced? The Long-Term Residence Directive as a Postnational Form of Membership
The Charter, Detention and Possible Regularization of Migrants in an Irregular Situation under the Returns Directive: Mahdi
Transnational Diffusion or Different Models? Regional Approaches to Migration Governance in the European Union and MERCOSUR
The Good, the Bad and the Ugly in EU Migration Law. Is the European Parliament Becoming Bad and Ugly (The Adoption of Directive 2008/115: the Returns Directive)?
Case Report ECJ: WT v Subdelegación del Gobierno en Guadalajara, Case C-448/19
Social Justifications for Restrictions of the Right to Welfare Equality
Misure e Condizioni di Integrazione per i Cittadini di Paesi Terzi nell’Unione Europea
Reacções latino-americanas à adopção da Directiva de Retorno
Immigration in the European Union. Family Reunification after the Metock Case
Rethinking Europe’s Freedom, Security and Justice
EU Migration Law: Opportunities and Challenges Ahead
Long-term Residents’ Integration in Spain at a Crossroads
The Returns Directive: Possible Limits and Interpretation
“En Attendant Godot” or the EU Limits to Integration Conditions
Directive 2003/109 on Long-term Residence for Third-country Nationals
La Nueva Ley de Inmigración en España. Un Primer Análisis de sus Aspectos Liberales y Restrictivos
Migration and Borders in the European Union: The Implementation of the Returns Directive on Irregular Migrants in Spain and Italy
Debate y Negociaciones sobre la Libre Circulación de Personas
Handling Irregular Immigration in the EU
Latin American Reactions to the Adoption of the Returns Directive
The Swiss Referendum. Is Free Movement of People in Danger in Europe?
Progress under Pressure
Tras el Brexit: ¿La adopción de un acuerdo de libre movilidad de personas entre España y Reino Unido como modo de gestión de las migraciones?
¿Existe un derecho en España a la regularización para los nacionales de terceros países en situación irregular? Un análisis a luz del Derecho Europeo, la Convención Europea de Derechos Humanos y la Ley de Extranjería.
Migration Law and Policy
The Expansion of Regional Free Movement Regimes. Towards a Borderless World?
After Brexit. Could bilateral agreements facilitate the free movement of persons?
Regional Free Movement of People at the Global Level. The Case of the Eurasian Economic Union (EAU)
Global Migration Issues: Myths and Realities
Regímenes de Libre Circulación de Personas a Nivel Mundial: Una Primera Aproximación y Definición
A Belief in the Purity of the Nation. The Possible Dangers of its Influence on Migration Legislation in Europe
International Law
Undocumented or Irregular Migrant Workers under the Model International Mobility Convention: Rights and Regularization
Beyond Justice, Beyond Peace? Colombia, the Interests of Justice, and the Limits of International Criminal Law
El Propósito del Derecho Penal Internacional Una Perspectiva de Aplicación