(en) The purpose of this paper is to examine the respective roles of monopoly power and efficiency considerations for explaining the predominance of large corporations in industrial activities. In the first section the two contrasting views are recalled. The next two sections discuss in more detail first the monopoly aspect and its related allocative inefficiency, second the role of efficiency gains depending on transaction costs as well as on technological issues. The fourth section tries to illustrate how efficiency and monopoly power can be combined in various institutional arrangements, In the conclusion we emphasize some recent empirical research trying to disentangle the proportions of monopoly and efficiency rents that large firms' profits contain.
Jacquemin, A. (1981). Large Firms in Search of Efficiency and Monopoly Power (Working Papers Institut des sciences économiques 8114). https://hdl.handle.net/2078.5/278858