Coordination games played by children and teenagers: on the influence of age, group size and incentives / Daniela Glätzle-Rützler (University of Innsbruck), Matthias Sutter (University of Innsbruck, Max Planck Institute for Research on Collective Goods, University of Cologne and IZA), Claudia Zoller (Management Center Innsbruck) ; IZA Institute of Labor Economics