|   | 
    Nature of Market | 
    Privatization / Liberalization | 
    Trading System | 
  
   
    | England & Wales | 
    
      
        - Vertical Integration now allowed after unbundling in 
          1990
 
        - Fossil fuel generators dominant at margin
 
       
     | 
    
      
        - Privatized in 1990
 
        - Partial deregulation 1994 
 
        - (> 100kW)
 
        - Fully deregulated by 1998
 
       
     | 
    
      
        - Pool system: half-hourly price consisting of energy/capacity/uplift 
          components.
 
        - Merit order dispatch
 
        - No trade outside Pool
 
       
     | 
  
   
    | Colombia | 
    
      
        - Gradual separation of vertically integrated industry
 
       
     | 
    
      
        - Liberalization driven by new laws introduced in 1994
 
       
     | 
    
      
        - Wholesale market organized by national transmission 
          business
 
       
     | 
  
   
    | Norway* | 
    
      
        - Some vertical integration
 
        - Horizontal integration encouraged
 
       
     | 
    
      
     | 
    
      
        - Nord Pool power exchange
 
        - Spot / futures / regulation markets
 
       
     | 
  
   
    | Australia | 
    
      
     | 
    
      
        - Victoria de-regulated in 1994
 
        - New South Wales and Queensland following
 
       
     | 
    
      
        - Victoria Power Exchange (VicPool)
 
        - No Capacity Payments
 
        - National Energy Market (NEM)
 
       
     | 
  
   
    | Argentina | 
    
      
        - Horizontal and vertical disaggregation
 
       
     | 
    
      
        - Privatization programme began in 1992
 
       
     | 
    
      
        - Merit order dispatch
 
        - Generator bid prices capped
 
        - Nodal pricing (daily and seasonal)
 
       
     |