[losvedir]

I think it depends how you define "effective" and "performance."

For reasonable definitions, I think compensation would have to be directly proportional to effectiveness, such that being twice as effective results in twice the compensation.

That would be the case if "effectiveness" meant "your responsibility for the firm's revenue." Otherwise, what are you measuring, such that you can be "10, 25, 50 times" as effective? Efficiency of coffee making?