From DAVID STREITFELD
Todd Rutherford was 7 years old when he first understood the nature of supply and demand. He was with a bunch of other boys, one of whom showed off a copy of Playboy to giggles and intense interest. Todd bought the magazine for $5, tore out the racy pictures and resold them to his chums for a buck apiece. He made $20 before his father shut him down a few hours later.
A few years ago, Mr. Rutherford, then in his mid-30s, had another flash of illumination about how scarcity opens the door to opportunity.
He was part of the marketing department of a company that provided services to self-published writers — services that included persuading traditional media and blogs to review the books. It was uphill work. He could churn out press releases all day long, trying to be noticed, but there is only so much space for the umpteenth vampire novel or yet another self-improvement