Monopsony: wages, wage bargaining and job requirements / Jasmin Anderlik (Ministry of Labor and the Economy, Vienna), Malika Jumaniyozova (Johannes Kepler University), Bernhard Schmidpeter (IZA, RWI and Vienna University of Business and Economics), Rudolf Winter-Ebmer (Johannes Kepler University, IZA, IHS and CEPR) ; IZA Institute of Labor Economics