Heterogeneous effects of credit constraints on SMEs' employment : evidence from the Great Recession / David Cornille (National Bank of Belgium), François Rycx (Université libre de Bruxelles (SBS-EM, CEB and DULBEA), humanOrg, IRES and IZA), Ilan Tojerow (Université libre de Bruxelles (SBS-EM, CEB and DULBEA) and IZA) ; IZA Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, January 2018