As might be expected, it can be tough to differentiate in the trash hauling business, and Waste Management has had limited success in raising prices. The industry's No. 2 player, Allied Waste (NYSE:AW), has encountered problems as well. Both companies have responded by implementing pricing strategies based on careful, market-driven analysis. Recently enacted fuel charges have also helped mitigate the impact of rising energy costs. As a result, Waste Management was able to push through a solid 3.2% price increase last quarter and was even more successful in raising prices charged to commercial customers.