The chief cost of the budget process is time. In some corporations the process takes on a life of its own and becomes a convoluted exercise of excessive complexity which, moreover, prevents unit managers from doing any thinking: their time is consumed in efforts to comply with a vast array of requirements dictated from above. Much of the negative attitude that has developed concerning this activity has its roots in unnecessary bureaucratic impositions on the one hand and unreliability because of the rapid change, a few months out.