The stresses which any electoral system places on a country’s administrative capacity will be determined primarily by history, context, experience, and resources, but a cursory glance at the different cost and administrative variables does offer some clues to the potential costs of various systems. List PR systems, especially national closed-list systems, score well when it comes to being cheap to run and requiring few administrative resources. So does PBV. Next come SNTV and LV systems, followed by BV and FPTP; and a little further down by the AV, STV, Parallel, Borda Count, and MMP systems. The system which is most likely to put pressure on any country’s administrative capacity is the Two-Round System.