Reproduced by permission of International IDEA from Electoral Management Design: The International IDEA Handbook © 2014 International Institute for Democracy and Electoral Assistance The electronic version of this publication is made available under a Creative Commons Attribute-NonCommercial-ShareAlike 3.0 (CC BY-NC-SA 3.0) licence. You are free to copy, distribute and transmit the publication, and to remix and adapt it, provided it is only for non-commercial purposes, that you appropriately attribute the publication and that you distribute it under an identical license. For more information on this licence see: http://creativecommons.org/licenses/by-nc-sa/3.0 .