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Comparative Citizenship Analyses

A primary goal of EUDO CITIZENSHIP is to stimulate comparative analyses of citizenship laws and policies. Until recently, most such analyses were either based on in-depth case studies of very small few (mostly Western European) countries, or on a superficial classification of a larger set of countries based on selected indicators such as waiting periods for naturalisation, ius soli provisions or the toleration of dual citizenship. Based on the methodology of the earlier NATAC project, EUDO CITIZENSHIP provides systematic information on all major modes of acquisition and loss of citizenship for all EU member states and a substantial number of neighbouring countries as well as in-depth analyses of the history and contemporary context of citizenship legislation.

These comprehensive sources of information have been used for a series of comparative reports commissioned by EUDO CITIZENSHIP which are posted on this page as they become available.

In addition to analyses of specific modes of acquisition and loss of citizenship for all countries covered by EUDO Citizenship, we have also commissioned regional reports. EUDO Citizenship expert Giovanna Zincone coordinates a series of reports on citizenship policy-making in Mediterranean member states of the European Union (Portugal, Spain, Italy and Greece). The EUDO Citizenship team at the Central European University in Budapest has provided a report on The Politics of External Kin-State Citizenship in East Central Europe.

We encourage researchers from outside our network to use our data bases and reports for their own comparative analyses and to submit these for publication in our Working Paper series.

EUDO Citizenship Comparative Reports

Costica Dumbrava: Comparative report : citizenship in Central and Eastern Europe (April 2017)

Cristina Escobar: Migration and franchise expansion in Latin America (March 2017)

Diego AcostaRegional report on citizenship: the South American and Mexican cases (September 2016).

Rainer Bauböck and Vesco PaskalevCitizenship deprivation: A normative analysis (March 2015), CEPS Paper in Liberty and Security in Europe. Link to abstract and full bibliographical references.

Pierre Garrone: Organisation of elections beyond territory and membership (January 2015). Link to full bibliographical references on CADMUS.

Maarten Peter Vink and Ngo Chun Luk: Mapping statistics on loss of nationality in the EU: A new online database (December 2014)

Gérard-René de Groot and Patrick Wautelet: Reflections on quasi-loss of nationality in comparative, International and European perspective (August 2014)

Thomas HuddlestonThe naturalisation procedure: measuring the ordinary obstacles and opportunities for immigrants to become citizens (September 2013) 

Gérard-René de Groot: Survey on rules on loss of nationality in international treaties and case laws (September 2013)

Olivier Willem VonkMaarten P. Vink and Gérard-René de Groot: Protection Against Statelessness. Trends and Regulations in Europe (May 2013)

Access to Citizenship and its Impact on Immigrant Integration: EU Summary and Standards (August 2013)

 Lisa PilgramInternational Law and European Nationality Laws (March 2011)

Maarten P. Vink and Gerard-René de GrootBirthright Citizenship. Trends and Regulations in Europe (November 2010)

Sara Wallace GoodmanNaturalisation Policies in Europe: Exploring Patterns of Inclusion and Exclusion (November 2010)

Mária KovácsZsolt Körtvélyesi and Szabolcs PogonyiThe Politics of External Kin-State Citizenship in East Central Europe (October 2010)

Gerard-René de Groot and Maarten P. VinkLoss of Citizenship. Trends and Regulations in Europe (October 2010, updated version)

Iseult Honohan: The theory and politics of ius soli (June 2010)

Reports on Citizenship Policy Making in Mediterranean Europe

EUDO Citizenship expert Giovanna Zincone coordinates a series of reports on citizenship policy-making in Mediterranean member states of the European Union (Portugal, Spain, Italy and Greece):

Giovanna ZinconeCitizenship Policy Making in Mediterranean EU States: Italy (June 2010)

Isabel Estrada: Citizenship Policy Making in Mediterranean EU States: Portugal (July 2010)

Alberto Martín Pérez and Francisco Javier Moreno Fuentes: Citizenship Policy Making in Mediterranean EU States: Spain (July 2010)

Dia AnagnostouCitizenship Policy Making in Mediterranean EU States: Greece (May 2011)

NATAC Reports (2006)

You can read and download, free of charge, an electronic version of the book: Rainer Bauböck, Eva Ersböll, Kees Groenendijk and Harald Waldrauch (eds.) Acquisition and Loss of Nationality Volume 1: Comparative Analyses : Policies and Trends in 15 European Countries, Amsterdam University Press, 2006.

Click on the book cover to download the book, or access individual chapters through the CITMODES website of the Edinburgh Law School.