The choice of the financing strategy will affect considerably the amount of assets that is going to be held in the fund and the amount of assets that can be held will affect considerably the future level of contribution rates. So in implementing schedule of contribution rate increases it will be important to answer some crucial questions: What is the maximum level of assets that can be properly and efficiently invested? What amount of assets is sociably acceptable? What is the maximum contribution rate that a society can afford? Answering these questions will help in implementing a contribution schedule that will meet the objectives and constraints.