I know every few years the Union hits the workers at our walmart. Don’t know how all the others operate, but the one here does a market comparison (see’s what cashiers in the three county area make, see what stock boys make, janitorial staff ect) then they boost the workers wages to 10 cents and hour more than the average. My Ex wife (and ex mother in law) worked at wally for a number of years. They were happy with the wages and bennefits, and the flexability of their scheduling.