The factors that affect worker productivity include the number of stock options granted to production workers, the warranty claim rate on recently-sold footwear, and the hourly rate of overtime pay that workers get. the percentage use of refurbished equipment versus new equipment, the percentage use of overtime, and the percentage use of standard materials versus superior materials. expenditures for TQM/Six Sigma training to enhance worker skills and whether the S/Q ratings on the footwear being produced are above or below 5.0 stars. how much emphasis is placed on incentive compensation (as measured by the percentage of the company's total compensation package accounted for by incentive pay) and expenditures for best practices training. whether workers are making branded or private-label shoes, and the complexity of the new features and styling that has been designed into the models/styles of footwear being produced