DEPARTMENT OF ECONOMICS JOHANNES KEPLER UNIVERSITY OF LINZ Manufacturer Cartels and Resale Price Maintenance by Matthias HUNOLD Johannes MUTHERS Working Paper No. 2006 March 2020 Johannes Kepler University of Linz Department of Economics Altenberger Strasse 69 A-4040 Linz - Auhof, Austria www.econ.jku.at
[email protected] Manufacturer Cartels and Resale Price Maintenance Matthias Hunold∗ and Johannes Muthers† February 2021 Abstract In a model with manufacturer and retailer competition, we show that RPM facilitates manufacturer cartels when retailers have an outside option to selling the manufacturer’s product. Because retailers have an effective outside option, the manufacturer can only ensure contract acceptance by leaving a sufficient margin to the retailers. This restricts the wholesale price level even when manufacturers collude. In this context, collusion can only become profitable for manufacturers if they use resale price maintenance. We thus provide a novel theory of harm for resale price maintenance when manufacturers collude and illustrate the fit of this theory in competition policy cases. JEL classification: D43, K21, K42, L41, L42, L81. Keywords: resale price maintenance, collusion, retailing. ∗We thank participants at the 2020 annual meeting of the Verein für Socialpolitik as well as seminar participants at the University of Siegen, and in particular Hanna Hottenrott, Sebastian Kessing, Dieter Pennerstorfer, Frank Schlütter and Nicolas Schutz for valuable comments and suggestions. Corresponding author. University of Siegen, Unteres Schloß 3, 57068 Siegen, Germany; e-mail:
[email protected]. †Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria; e-mail: jo-
[email protected] 1 1 Introduction Resale price maintenance (RPM) has been used by colluding manufacturers of beer, gummi bears, chocolate, and coffee.1 The case reports contain indications that RPM indeed helped to make manufacturer collusion successful.