The question whether the use of an asset will be terminated before its physical life expires is of interest to financial managers. In other words, purchasing an asset does not necessitate its use until the end of its physical life. An asset might be terminated because it is inefficient to continue operating, or because it can be replaced. Thus, in a single cycle problem, the objective is to determine how long an asset should be employed before termination. In a replacement problem, the focus is on determining how long the asset should be held before being replaced with a similar one.