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When a person living in a small village in India buys a can
of Campbell's soup, that act triggers an elaborate economic scorekeeping system
that both describes and empowers worldwide commerce. The scorekeeping system is
called accounting, and the score is a measure of rewards owed to people along
the value chain for their effort, ideas and investments.

Accounting is the most practical subject in school, becauseit expresses what all of us do with money everyday. I'm not saying thatgeometry is n...