CHESAPEAKE, Va. (AP) — Dollar Tree, the national chain of stores that promises everything for a buck, will begin introducing items on its shelves that will exceed $1. The company says it’s responding to customer requests and that pushing the $1 barrier will allow for a better mix of products. Prices at Dollar Tree have been unchanged for decades. The decision comes with inflation rising above 4% in July. Prices have risen across the spectrum as the global economy emerges from the pandemic.