It can also provide insights on how these values are distributed, i.e. over time, at different levels of scale and between different user groups, which is important for understanding the distributional implications of MPAs, and thus how they can best be managed. Finally, understanding the costs associated with MPAs enables planners to budget and to help secure adequate finance for the effective long-term management of MPAs (see Chapter 4). These benefits fall under the various components of the total economic value (TEV), which is the sum of all the use values (direct, indirect and option) and non-use values for a good or service (Box 2.1).