Companies that cater to the public by selling various goods are called retailers. This encompasses both large and small stores. Investors look at fashion trends, sales per square feet, the potential to open more stores, inventory levels, and same-store sales data, as well as the ability of retailers to generate loyalty among their customers. Looking at them as a whole, retailers can provide a general idea about consumer spending. If they are selling more, it is considered to be a good sign; when they are selling less, it means consumers are struggling, and there may be rough roads ahead for the economy.