Again, this is a key question of system design for which there needs to be a coordinated answer, whether the eventual decision is for or against. To sum up:   Coordination failures can be an obstacle to innovation.   That problem is inherent in the nature of payment networks.
  It’s very hard to design governance structures that make appropriate provision for coordination while still allowing for normal competition to occur.   That suggests a role for leadership by payments regulators or central banks    In some ways, central banks have a natural leadership role because they act as a hub already in many payment systems.