In addition, Costco offers a comprehensive insurance, disability, and employee stock purchase benefits package to all its workers, including part-timers after six months on the job, with coverage options for children, spouses, and partners. More than half the companies that earned strong reviews from workers without a college degree are retailers, including list-topper Costco Wholesale and department-store chain Nordstrom, . The relative value of a high school diploma has decreased, college tuition costs have risen faster than the rate of inflation during the past several years, and jobs that don't require a college degree are increasingly difficult to find.