Third, Erik and collaborators argue that the digital economy often benefits superstars over everyone else. Harry Potter author J. K. Rowling became the first writer to join the billionaire club, and she got much richer than Shakespeare because her stories could be transmitted in the form of text, movies and games to billions of people at very low cost. Similarly, Scott Cook made a billion on the TurboTax tax preparation software, which, unlike human tax preparers, can be sold as a download. Since most people are willing to pay little or nothing for the tenth-best tax-preparation software,
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