Suppose that every day, ten men go down to the neighborhood pub for beer and the bill for all ten comes to $100. If they paid their bill the way we pay our income taxes in America, it would go something like this…
•	The first four men (the poorest) would pay nothing
•	The fifth would pay $1
•	The sixth would pay $3
•	The seventh would pay $7
•	The eighth would pay $12
•	The ninth would pay $18
•	The tenth man (the richest) would pay $59
So, that’s what they decided to do.
The ten men drank in the bar every day and seemed quite happy with the arrangement, until one day, the owner threw them a curve ball. “Since you’re all such good customers,” he said, “I’m going to reduce the cost of your daily beer by $20″.  Drinks for the ten men would now cost just $80.     

cont...........