Template-type: ReDif-Paper 1.0 Author-Name: Alcalde-Unzu Jorge Author-Name: Vorsatz Marc Author-workplace-name: METEOR Title: Size Approval Voting Abstract: We propose a new class of voting rules, called Size Approval Voting. According to this rule, the effective weight of a vote from a given individual depends on how many other alternatives the very same individual votes for. In particular, weights are assumed to be non-negative and weakly decreasing in the number of approved alternatives. Then, for a given profile of individual votes, all those alternatives with the maximal sum of weighted votes are elected. We show in our axiomatic analysis that the family of all Size Approval Voting is characterized by a set of natural properties. Keywords: Economics (Jel: A) Series: Research Memoranda Creation-Date: 2007 Number: 008 File-URL: http://digitalarchive.maastrichtuniversity.nl/fedora/objects/guid:7a93a3e9-33fd-4787-942d-8b997e5aa62b/datastreams/ASSET1/content File-Format: application/pdf File-Size: 259210 Handle: RePEc:unm:umamet:2007008