“…Even though the current guidelines of the KFTC illustrate some efficiency justification, 22 the criteria for exemption are not very clear. In particular, the KFTC's decision in DPK International, 23 a territorial restriction case, showed its lack of capacity in understanding this justification. 24 16 Regarding transaction cost arguments, see R.H. Coase, 'The Nature of the Firm' (1937) 4 Economica, page 403.…”