In Ravonia, the telecom sector is dominated by four major service providers: Flank, Zelno, Tuhaz,...

In Ravonia, the telecom sector is dominated by four major service providers: Flank, Zelno, Tuhaz, and Klock. The service providers determine call rates and broadband rates using a collective strategy. They maintain uniform pricing and compete mainly on quality and service. Flank, Zelno, Tuhaz, and Klock are using a _____ strategy.