So similar and yet so different : a comparative analysis of a firm's cost and benefits of apprenticeship training in Austria and Switzerland / Luca Moretti (University of Bern), Martin Mayerl (Austrian Institute for Research on Vocational Training (ÖIBF), Vienna), Samuel Muehlemann (LMU Munich and IZA), Peter Schlögl (Alpen-Adria-Universität Klagenfurt and ÖIBF), Stefan C. Wolter (University of Bern, CESifo and IZA) ; IZA Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, October 2017