The latest benchmarking report was published in 2013. It was believed that operating at the larger scale would: i) increase efficiency (scale economies), it) enable specialised and improved supervision (corporate governance), iii) help better comply with environmental regulation, and iv) foster policy coherence with an objective of more than one drinking water company per province. Several of the ten remaining drinking water companies are discussing new mergers, possibly resulting in still less utilities in the next few years (De Witte and Dijkgraaf, 2010). Also the directors of the Dutch Central Bank and the Netherlands Bureau for Economic Policy Analysis are Crown members (SER, 2010).