Competition policy can do much to fight bid rigging and co-operate with procurement bodies to contribute to better and cheaper public services. Discover some inspiring initiatives taken by competition authorities and international organizations illustrated by Renato Ferrandi, the co-ordinator of the OECD-GVH Regional Centre for Competition, together with Despina Pachnou, OECD competition experts, and Attila Karsay, from the Cartel Detection Section of the Hungarian GVH.