between the rates or fees charged the various classes of mail for postal services. (10) The importance of pricing flexibility to encourage increased mail volume and operational efficiency. (11) The relative value to postal users of the kinds of mail matter entered into the postal system and the desirability and justification for special classifications and services of mail. (12) The importance of providing classifications with extremely high degrees of reliability and speed of delivery and of providing those that do not require high degrees of reliability and speed of delivery. (13) The desirability of special classifications for both postal users and the Postal Service in accordance with the policies of this title, including agreements between the Postal Service and postal users, when available on public and reasonable terms to similarly situated mailers, that— (A) improve the net financial position of the Postal Service by reducing Postal Service costs or increasing the overall contribution to the institutional costs of the Postal Service