The rise of the free movements : how posting shapes a hybrid single European labour market / Ninke Mussche (Herman Deleeck Centre for Social Policy, University of Antwerp), Vincent Corluy (Herman Deleeck Centre for Social Policy, University of Antwerp), Ive Marx (Herman Deleeck Centre for Social Policy, University of Antwerp and IZA) ; IZA. Bonn : IZA, November 2016