This article reviews how the newly emerged east-west mobility patterns impacted the labor market options of the labor force in host member states and stayers in the source members. It concludes that free mobility in an enlarged EU increased the efficiency of its labor markets.

The Roma are the largest ethnic minority in Europe—as well as one of the most disadvantaged. A triple vicious circle is at play: Substandard socio-economic outcomes reinforce each other; they fuel negative attitudes and perceptions, leading to ill-chosen policies; and segmentation is perpetuated through (statistical) discrimination.

How skilled immigration may improve economic equality, in IZA Journal of Migration 2014, 3:2 The paper suggests that skilled immigration promotes economic equality in advanced economies under standard conditions. This is discussed and theoretically derived in a core model, and empirically supported using unique data from the WIID database and OECD.

Tenure Profiles and Efficient Separation in a Stochastic Productivity Model, forthcoming in Journal of Business and Economic Statistics, also as CELSI DP No. 7

*Returns to tenure or seniority?*, forthcoming in Econometrica.

Social Protection Rights of Economically Dependent Self-employed Workers, as IZA Research Report No. 54, Based on a study conducted for the European Parliament under contract IP/A/EMPL/FWC/2008–002/C1/SC8

The working hours of immigrants in Germany: temporary versus permanent, in IZA Journal of Migration, 2013, 2:14 (also IZA DP 4735)

Migration Strategies of the Crisis-Stricken Youth in an Enlarged European Union, forthcoming in Transfer: European Review of Labor and Research, 2013 (also CELSI DP 6; IZA DP 7285; 2013)

The demise of social partnership or a balanced recovery? The crisis and collective bargaining in Slovakia, in Transfer: European Review of Labour and Research Volume 19 Issue 2, May 2013

International Journal of Manpower, special issue on “Migration, the Welfare State, and European Labor Markets”, Vol. 34, No. 1+2, (2013)