Analysts cite a number of reasons for Family Dollar’s difficulties, including low-income shoppers who are wrestling with inflation, competition with other retailers, and issues including poorly maintained stores.

Dollar Tree’s decade-long effort to fold the Family Dollar chain into its business is ending after agreeing to sell the bargain store chain to a pair of private equity firms for $1 billion. Dollar Tree Inc. bought Family Dollar with its over 7,000 stores ten years ago for more than $8 billion.

Assuming its new owner will actually fix what's actually ailing it, a new-and-improved Family Dollar will rattle the rest of the retailing industry.