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247 bytes added ,  18:40, 19 February 2012
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**Operating leverage is <math>\frac{Revenue - Variable\;Cost}{Op.\;Income}</math>
**I think we used: <math>\frac{Total\;Liabilities}{Equity}</math>
 
==Extending the paper==
 
Coming back to it, the paper looks a little thin (though clearly the data is a monster already). I think it would benefit from a couple of extensions, particularly the inclusion of something that resembles an instrument.
Anonymous user

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