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[quote user="greyhounds"]  And margins aren't profitablity.  A railroad can make more money on freight priced at 110% of variable than it does on freight priced at 200% of variable.  It depends on volume.[/quote]Wrong.  Dead wrong.  No railroad can make money at 110% R/VC if the VC + FC ratios are around 140% of R.  Therefore, if a railroad is charging one customer 110% R/VC, they have to make it up on the 200% customer or they will go under.  Volume means nothing if you aren't covering TC.
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