, We used the eliciting name method for the first two dimensions. In other words, we collected data on the socio-economic characteristics for every named person, that is their sex, age, place of birth, place of residence

A. Andreotti and P. L. Galès, Middle class neighbourhood attachment in Paris and Milan: partial exit and profound rootedness, Networked urbanism: social capital in the city, pp.127-171, 2008.

A. Andreotti and P. L. Galès, Les cadres supérieurs et la globalisation: mobilité, ancrage, exit partiel et ségrégation sociale dans les villes européennes: une enquête comparative exploratoire', rapport d'enquête final Plan Urbanisme Construction Architecture pour le ministère de l'Écologie de l, 2008.

A. Andreotti, F. J. Moreno-fuentes, and P. Galès, Globalising urban bourgeoisie in European cities, 2010.

I. Angell, The new barbarian manifesto: how to survive the information age, 2000.

A. Bagnasco and P. L. Galès, Cities in contemporary Europe, 2000.

A. Bagnasco and N. Negri, , 1994.

S. Bartolini, Exit options, boundary building, political structuring: sketches of a theory of large-scale territorial and membership 'retrenchment/differentiation' versus 'expansion/ integration, 1998.

. Eui-working and . Papers, SPS no. 98/1, EUI: Florence

S. Bartolini, Restructuring Europe: centre formation, system building and political structuring between the nation-state and the EU, 2005.

U. Beck, What is globalization?, 1999.

M. Burawoy, J. A. Blum, S. George, Z. Gille, T. Gowan et al., Global ethnography: forces, connections, and imaginations in a postmodern world, 2000.

T. Butler and G. Robson, London calling: the middle classes and the remaking of inner London, 2003.

, Social change and the middle classes, 1995.

M. ;. Castells, P. L. Galès, C. Trigilia, and H. Voelzkow, Local production systems in Europe: rise or demise?, 1996.

A. Elliott and J. Urry, Mobile lives, 2010.

A. Favell, Eurostars in Eurocities, 2008.

, Sociology of the European Union, 2011.

, Pioneers of European integration, 2009.

N. Fligstein, , 2008.

A. Giddens, Reflexive modernization: politics, tradition and aesthetics in the modern social order, pp.56-109, 1994.

J. Goldthorpe, On the service class, its formation and future, Social class and the division of labour, pp.47-64, 1982.

L. E. Guarnizo, A. Portes, and W. Haller, Assimilation and transnationalism: determinants of transnational political action among contemporary migrants, American Journal of Sociology, vol.108, issue.6, pp.1211-1259, 2003.

P. Gustafson, More cosmopolitan, no less local, vol.11, pp.25-47, 2009.

U. Hannerz, Transnational connections: culture, people, places, London: Routledge. Istat (2010) Rapporto sull, 2003.

H. Kaelble, A social history of western Europe, pp.1880-1980, 1990.

Y. Kazepov, Cities of Europe: changing contexts, local arrangements, and the challenge to urban cohesion, 2005.

P. Kennedy, Global transformations but local "bubble" lives: taking a reality check on some globalization concepts, Globalizations, vol.4, issue.2, pp.267-83, 2007.

P. Kennedy, Local lives and global transformations, 2010.

L. Galès and P. , European cities: social conflicts and governance, 2002.

L. Galès, P. , and G. Therborn, Cities, Handbook of European societies, pp.59-89, 2010.

P. Levitt, J. De-wind, and S. Vertovec, International perspectives on transnational migration, International Migration Review, vol.37, issue.3, pp.565-75, 2006.

D. Lockwood, Introduction: making out the middle class(es), Social change and the middle classes, pp.1-14, 1995.

B. Martin, Knowledge, identity and the middle class: from collective to individualized class formation?, Sociological Review, vol.46, issue.4, pp.653-86, 1998.

S. Mau, Social transnationalism: lifeworlds beyond the nation-state, 2010.

J. Medrano, Europeanisation and class, 2011.

M. Pinçon-charlot and M. Pinçon, Sociologie de la bourgeoisie, 2000.

W. I. Robinson and J. Harris, Towards a global ruling class? Globalization and the transnational capitalist class, Science & Society, vol.64, issue.1, pp.11-54, 2000.

M. Savage, G. Bagnall, and B. Longhurst, Globalisation and belonging, 2005.

L. Sklair, The transnational capitalist class, 1995.

J. Urry, Sociology beyond societies, 2000.