Martin-Hughes, RowanRenz, Jochen2015-12-10March 16-29781595937537http://hdl.handle.net/1885/52866In large-scale open systems such as eBay one of the key concerns in increasing the utility of users is having a. trustworthy method for users to determine which interactions will be satisfactory and which are liable to lead to disappointment. Rather thanKeywords: Agents; Commerce; Electronic commerce; Industrial economics; Online systems; Open systems; Defection; Online auctions; Possible futures; Reputation systems; Game theory Defection; Game theory; Online auctions; Reputation systemsExamining the motivations of defection in large-scale open systems200810.1145/1363686.13641782016-02-24