Key points are not available for this paper at this time.
Phillip Areeda, Donald Turner, Conglomerate Mergers: Extended Interdependence and Effects on Interindustry Competition as Grounds for Condemnation, University of Pennsylvania Law Review, Vol. 127, No. 4 (Apr., 1979), pp. 1082-1103
Areeda et al. (Sun,) studied this question.