Competition and regulation with product differentiation

Raffaele Fiocco

Journal of Regulatory Economics, 2012, vol. 42, issue 3, 287-307

Abstract: We consider a market for differentiated products, where one good is supplied by a regulated monopolist and competitive firms operate in an unregulated segment. In this setting we investigate the issue of whether to allow the monopolist to diversify into the unregulated segment by owning a competitive firm. Under asymmetric cost information, if goods are substitutes a diversified monopolist, which exaggerates its costs in the regulated segment to charge a higher regulated price, stimulates the demand for the competitive affiliate. This strengthens the firm’s incentive to inflate costs, since doing so generates a positive informational spillover to its profits in the competitive segment. Consequently, a regime of separation, which prevents the firm from operating in the competitive segment, is welfare-enhancing. Conversely, with complements, cost exaggeration in the regulated monopoly reduces the demand and harms profits in the competitive segment, and allowing the monopolist to diversify into the competitive segment therefore generates countervailing incentives, which weaken the firm’s interest in cost manipulation and improve social welfare. Copyright Springer Science+Business Media, LLC 2012

Keywords: Competition; Diversification; Product differentiation; Regulation; Separation; D82; L11; L51 (search for similar items in EconPapers)
Date: 2012
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
http://hdl.handle.net/10.1007/s11149-012-9195-2 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:kap:regeco:v:42:y:2012:i:3:p:287-307

Ordering information: This journal article can be ordered from
http://www.springer. ... on/journal/11149/PS2

DOI: 10.1007/s11149-012-9195-2

Access Statistics for this article

Journal of Regulatory Economics is currently edited by Menaham Spiegel

More articles in Journal of Regulatory Economics from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().