During a period, an Unemployment Fund (UF) handles members and beneficiaries, at a cost. In this, they are more or less efficient. Four optimizations indicate that the aggregate cost may be reduced by as much as 35 per cent. In the process, the inefficient UFs are identified. Moreover, the reason for inefficiency is also investigated, since the economical efficiency (CRS) is separated into production-mix efficiency, technical efficiency (VRS), and scale efficiency. The results indicate both an optimal production mix and scale. This information can be used in the discussion of future structural change.