Overutilisation: business produces more goods than it operation should handle, can cause stress on over worked staff and minimises potential for maintenance of equipment.
Underutilisation: business produces fewer goods than it is able to handle. Can lead to staff being underworld which may demotivate them and waste company money on employees they do not need.
Productivity: a companys hourly rate of output each input.
Efficency: how much a business can achieve through a minimum number of units or average costs.