How credit constrained are family-owned SMEs in Arab countries? / Grakolet Gourène (UNECA and Université Jean Lorougnon Guédé), Zuzana Brixiova Schwidrowski (UNECA and IZA), Jiří Balcar (VSB-Technical University of Ostrava), Lenka Johnson Filipova (VSB-Technical University of Ostrava) ; IZA Institute of Labor Economics