 Luck egalitarians continue to refine such aspects of their theories as (a) what they believe is the relevant conception of equality of opportunity, (b) how much of a role luck should play in the distribution of economic benefits and (c) what is the best conception of ‘luck’ (Arneson 1990 and 2001, Fleurbaey 2001, Hurley 2001 and 2003, Swift 2008, Sher 2010). Relatedly, they continue to explore what role responsibility should play in the distribution of economic goods (Sen 1985, Cohen 1997, Valentyne 1997, Knight 2011).