Dollar Tree earnings up 26 percent. Shares fall.

Dollar Tree reported robust results for the second quarter of fiscal 2012.Dollar Tree reported robust results for the second quarter of fiscal 2012.CHESAPEAKE Dollar Tree Inc. customers continued to flock to its stores in the second quarter, driving a 25.6 percent jump in the retailer's profit.Dollar Tree intends to continue to use consumables primarily to drive sales of variety merchandise rather than move deeper into grocery-category expansion.Two customers head inside the Dollar Tree, which opened for business Thursday. The discount Dollar Tree recently began hiring new employees as

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