Marsha's Pet Store employs six employees. Their duties are to sell pets, replenish the stock, keep the pets' cages clean, feed the pets, and maintain good records. Marsha pays a fixed hourly rate and a commission on sales of pets. Lately, Marsha has been finding that the records have not been well maintained and the stock has not been replenished. However, pet sales are good and the pets' cages are clean.
How might Marsha's current reward structure be motivating the employees to pay more attention to the pets than to their other duties?