Ray Dalio Explains How Economy Works

http://www.bwater.com/home/research--press.aspx

Points of Interests

http://csinvesting.org/wp-content/uploads/2012/09/placing-ebitda-into-perspective.pdf
http://csinvesting.org/wp-content/uploads/2012/05/dempster_mills_manufacturing_case_study_bpls.pdf
https://www.aar.org/keyissues/Pages/Background-Papers.aspx#.Ut_pL2Qo7-Z
https://www.aar.org/keyissues/Documents/Background-Papers/Rail-Intermodal.pdf
https://www.aar.org/keyissues/Documents/Background-Papers/Mergers-US-Freight-RR.pdf
http://www.sec.gov/Archives/edgar/data/934612/000119312506034572/d10k.htm
http://www.sec.gov/Archives/edgar/data/934612/000119312504023301/d10k.htm
http://www.sec.gov/Archives/edgar/data/934612/000119312505030538/d10k.htm