Zofia Stemplowska has written an introduction to "luck egalitarianism" for "The Routledge Companion to Social and Political Philosophy", which came out in November.
An earlier version of Stemplowska's introduction is available at her website:
"Luck Egalitarianism" [pdf]
Zofia Stemplowska is Lecturer at the University of Oxford. She is co-editor (with Carl Knight) of "Responsibility and Distributive Justice" (Oxford University Press, 2011). See my post on the book here. The introduction is available here [pdf].