What motivates you

how the compensation system influences employees' motivation, productivity and satisfaction.  Please research this subject and then cover the following in your response:

• How important is the compensation system in an employees' productivity?
• Are there other factors that employers can do to motivate employees?  
• Which is stronger – intrinsic or extrinsic motivation and why?
• What type of motivation (intrinsic or extrinsic) do you prefer and why?