The factors that affect worker productivity include whether workers are making branded or private$-$label shoes, and the complexity of the new features and styling that been designed into the models$/$styles of footwear being produced expenditures for TQM$/$Six Sigma training to enhance worker skills and the extent to which the S $/$ Q ratings on the foo being produced are above $5\mathrm{.}0$ stars the size of the year$-$end production bonuses granted to production workers, the percentage use of superior material the hourly rate of overtime pay that workers get. 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 the amount the company spends annually per worker for practices training. the percentage use of refurbished equipment versus new equipment, the percentage use of overtime, and the extent which the percentage use of superior materials exceeds the percentage use of standard materials.