Family Dollar, Dollar Tree, Dollar General and other discount stores have had longstanding theft issues, operating stores with just a handful of employees who have at times been victims of violent robberies and other crimes.

Dollar Tree employees have complained about unsafe working conditions, and OSHA last year criticized the company for a “continued disregard for human safety” that “suggests the company thinks profits matter more than people.”

Family Dollar was hit with a record fine this year for violating product safety standards after selling items that were stocked in a rat-infested warehouse in West Memphis filled with live, dead and decaying rodents.

The $41.6 million fine was “the largest-ever monetary criminal penalty in a food safety case,” the Justice Department said.

Last year, Dollar Tree announced it would review its entire portfolio of Family Dollar stores to identify underperforming locations.

Dollar General booming

As Family Dollar struggled, rival Dollar General boomed.

Dollar General has opened about 1,000 stores a year, making it the fastest-growing retailer in the United States. The company has around 18,000 stores.

The companies are battling for many of the same low-income shoppers. Despite the name, these stores sell mostly food and everyday items for between $1 and $10.

But Family Dollar has lost ground to Dollar General, in particular due to prices: Family Dollar’s prices can be 10% to 15% higher than Dollar General’s and other discount competitors. Dollar General, which is more than double the size of Family Dollar, can offer lower prices because of its scale.

Shoppers have shifted to Dollar General, Walmart, Target and other low-priced chains to stretch their budgets.