Gilo, David; Moshe, Yossi; Spiegel, Yossi - In: RAND Journal of Economics 37 (2006) 1, pp. 81-99
We examine the effects that passive investments in rival firms have on the incentives of firms to engage in tacit collusion. In general, these incentives depend in a complex way on the entire partial cross ownership (PCO) structure in the industry. We establish necessary and sufficient...