text: REVIEW OF CONSOLIDATED PERFORMANCE 
  
  This section discusses our consolidated operating income, net income 
  and other expenses that do not form part of the segment discussions 
  above. 
  
  Stock-based compensation expense increased to $84 million from 
  $77 million in 2012. Stock-based compensation of $84 million was 
  mainly the result of the vesting of share-based options and units and 
  the increase in the RCI Class B share price during the first two months 
  of this year prior to entering into the Equity Derivatives. 
  
  We had a liability of $164 million at December 31, 2013 (2012 – $195 
  million) related to stock-based compensation recorded at its fair value, 
  including stock options, restricted share units and deferred share units. 
  
  We paid $101 million in 2013 (2012 – $76 million) to holders of stock 
  options, restricted share units and deferred share units upon exercise. 
  All stock options holders exercised their stock options through optional 
  share appreciation rights (SARs). We use derivative instruments from 
  time to time to manage our exposure to market-based fluctuations in 
  our stock-based compensation expense. 