“…I would submit that the sequential-exchange framework helps to distinguish the enabling and regulatory roles of public ordering (as they are mainly connected, respectively, to exchange and use externalities), and provides an operational way of identifying the comparative advantage, organizational constraints and viable hybridization of private and public ordering solutions. In addition to the cases summarized in the paper, sequential exchange has contributed along these lines to analysing the organization of notaries public (Arruñada 1996, 2007), title insurers (Arruñada 2002), recorders for internet domains (Arruñada 2003: 427), one-stop shops for business formalization (Arruñada 2010a), company registries (Arruñada 2010b, Arruñada and Manzanares 2016), providers of business information (Arruñada 2011), real and intellectual property registers (Arruñada and Hansen 2015), and the consequences of technological change, as recently epitomized by blockchain (Arruñada 2017b).…”