Collective bargaining through the magnifying glass: a comparison between the Netherlands and Portugal / Alexander Hijzen (OECD and IZA), Pedro S. Martins (Queen Mary University of London, NovaSBE and IZA), Jante Parlevliet (De Nederlandsche Bank and University of Amsterdam) ; IZA Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, October 2017