post-merger R&D efforts (including lower expenditure). SIEIC is distinct from the mainstream unilateral effects theory of … analysis lies a fundamental question of competition theory: under what conditions can variations of existing economic models be … applied in merger cases? This paper is divided into three sections. In Section I, the SIEIC theory of harm is described and …

efficiency is incorporated. The “dynamic enforcement model” examined here provides a positive theory of Section 2 doctrine, some …