In 2007 Jo Shaw completed a longstanding project on electoral rights for non-nationals in Europe with the publication of a book: The Transformation of Citizenship in the European UnionCambridge University Press (UACES Book Prize 2008). The book examines EU electoral rights in the broader context of citizenship and constitutionalism in the EU, understood as a multi-level polity comprising both the EU and its institutions, the Member States and indeed the subnational authorities.

One policy related output from this work is a collaboration with members of the Migration and Citizenship Research Initiative, based at University College Dublin. In a team led by Dr Bryan Fanning, she has participated in the production of a pamphlet (pdf file) outlining research into the immigration and integration policies of Ireland's principal political parties, in the context of the general election 2007, and she continued to collaborate with Dr. Fanning on follow up work culminating in the publication of a report entitled New Irish Politics in 2009.

In the context of her work on citizenship related issues, Jo collaborates with other Edinburgh academics through theinterdisciplinary Migration and Citizenship Research Group housed within Edinburgh Politics, but including scholars from many disciplines including social policy, sociology, anthropology and geography. She was also a member of Cluster B3 of IMISCOE, an FP6-funded Network of Excellence.

From 2007 onwards, she began a new phase of research on aspects of citizenship in Europe, shifting her focus to South Eastern Europe. In July 2007, she was awarded funding under the International Programme of the Royal Society of Edinburgh, in partnership with the Slovenian Academy of Sciences, to visit the Faculty of Law, University of Ljubljana, Slovenia. This work culminated in the award of an Advanced Investigator Grant from the European Research Council to fund a project entitled The Europeanisation of Citizenship in the Successor States of the Former Yugoslavia, on which she collaborates with a team based in Edinburgh and a number of researchers based in the former Yugoslavia (2009-2014).

Looking at national citizenship more generally, together with Rainer Bauboeck of the European University Institute, she was successful in an application to have a project entitled CITMODES (Acquisition and Loss of Nationality: a study of citizenship in and across modern European states) adopted as an Academy Research Project by the British Academy. This prestigious kitemark is only granted to about 40 long-running projects, which the Academy believes to be of great significance. This project has evolved into the development of an extensive observatory on citizenship and nationality laws entitled EUDO Citizenship, building in particular on Rainer Bauboeck's NATAC project.

Her interests in EU citizenship and its implications at the national level have continued with a project begun in December 2009 with Maria Fletcher of the University of Glasgow, with funding from the Nuffield Foundation, entitledFriction and Overlap between EU free movement law and UK immigration lawNina Miller was the Research Fellow working on the Overlap project. With her colleague Niamh Nic Shuibhne, she will act as the General Rapporteur for the topic "Union Citizenship: Development, Impact and Challenges" at the FIDE Congress in 2014.

Other related research projects include a study of the Constitutionalisation of Europe's Transnational Political Parties (funded by the ESRC), with Stephen Day, now based at Oita University in Japan, and work on the mainstreaming of gender and other equality principles into EU law and public policy, in particular a report funded by the European Network Against Racism.

In the field of substantive EU law, in 2007 she published a textbook on the Economic and Social Law of the European Union (co-authors Jo Hunt and Chloe Wallace). This is a companion volume to her now sadly rather outdated book on EU constitutional and institutional law, also with Palgrave: Law of the European Union. She also works (and sometimes teaches) in the field of EU Justice and Home Affairs Law and Policy.