Normann, Hans-Theo; Rösch, Jürgen; Schultz, Luis Manuel - Düsseldorf Institute for Competition Economics (DICE), … - 2014
We explore whether lawful cooperation in buyer groups facilitates collusion in the product market. Buyer groups … purchase inputs more economically. In a repeated game, abandoning the buyer group altogether or excluding single firms … constitute credible threats. Hence, in theory, buyer groups facilitate collusion. We run several experimental treatments using …