More than 50 percent of small-business customers report bank problems.

• Position: Marketing News

Although small businesses contribute significantly higher revenue to banks than retail customers, the incidence of problems experienced by small businesses is considerably higher, according to the 2006 Small Business Banking Satisfaction Study released recently by J.D. Power and Associates, Westlake Village, Calif.

More than one-half of small businesses report problems, compared with 31 percent of retail customers. Processing and transaction errors, such as the deposit details not showing up properly, are the most commonly reported problems.

"Small business customers typically carry account balances that are 25 times greater than the average account balance among retail customers," says Jeff...