It's not even a zero-- or rather if I have less, you'll have less- that's a negative sum game-- or a zero sum game-- if I have more, you'll have less- it's a fixed pie.
One implication of the pie metaphor is that wealth is a zero-sum game: there is a fixed amount of houses, cars, medicines, etc. to go around, and the more Steve Jobs gets the less is left for the rest of us.
