This paper, linked to from that page, also has some very interesting material in it, particularly on the use of RONA (Return On Net Assets) as a metric: http://

This paper, linked to from that page, also has some very interesting material in it, particularly on the use of RONA (Return On Net Assets) as a metric: http://seattletimes.nwsource.com/ABPub/2011/02/04/2014130646.pdf http://seattletimes.nwsource.com/ABPub/2011/02/04/2014130646...