How's this picture: Most of the people who shop at wally -mart can't afford to shop anywhere else.<quoted text>
i am not sure that your description of "supply and demand" could have been put in any more simple terms.
You may have to draw him a picture......with crayons.
If they make a little more they shop at Winco.
If they make a little more they shop at Costco.
If they make a little more they shop at Raleys, Safeway or Savemart.
Like I posted earlier: its fun to look down at the ex -pseudo rich who used to look down on me from their perches and who are now shopping at wally -mart, Winco, Costco.