potential competitors on the relevant market
as defined in Commission Regulation (EU) No 316/2014 of 21 March 2014 on the application of… (Definitions)
which, in the absence of the technology transfer agreement, would, on realistic grounds and not just as a mere theroretical possibility, in response to a small and permanent increase in relative prices, be likely to undertake, within a short period of time, the necessary additional investments or other necessary switching costs to enter the relevant market(s)