This SPE evening meeting brought together a leading UK regulator and high-profile economic consultant to discuss whether competition authorities should be concerned about collusion arising from pricing algorithms.  Stephen Lewis, Partner at RBB Economics, reminded the audience that these issues are neither new nor a reason for a more interventionist approach by regulators.  Dr Mike Walker, Chief Economist at the Competition and Markets Authority, speaking in a personal capacity, highlighted that more theoretical and empirical research was required in the area – at this stage, his main concern was the use of algorithms to facilitate higher prices as part of a wider collusive agreement.