While longer investment terms yield higher interest rates, longer terms also may result in a loss of opportunity to lock in higher interest rates in a rising-rate economy. A common mitigation strategy for this opportunity cost is the "CD ladder" strategy. In the ladder strategies, the investor distributes the deposits over a period of several years with the goal of having all one's money deposited at the longest term (and therefore the higher rate) but in a way that part of it matures annually. In this way, the depositor reaps the benefits of the longest-term rates while retaining the option to re-invest or withdraw the money in shorter-term intervals.