In addition, small landlords often keep rents below market rates to avoid losing "good" tenants (because the costs of dealing with bad tenants can be very large). So when government policy changes produce very large "surprise" upward pressures in the rental market, market rents often lag behind what the new market conditions justify. During such a situation, RealPage's tools can accelerate that adjustment. But it is a faster adjustment toward the new market equilibrium (Which RealPage describes as "recommending rents that will cause a property's vacant units to be filled at competitive prices"), not a monopolistic conspiracy. And those tools do not necessarily raise prices; they also act to hasten rent reductions in housing downturns. In fact, DOJ admits that RealPage does what landlords already do—search for insight into current market conditions and future prospects. RealPage just does that more thoroughly and accurately.