brajesh writes "Does P2P file-sharing really affect music sales and in what ways? According to a blog entry at "The Long Tail", a paper from David Blackburn[.pdf], a Harvard PhD student, on the economics of P2P file-sharing concludes that it does indeed depress music sales overall. But the effect is not felt evenly. The hits at the top of the charts lose sales, but the niche artists further down the popularity curve actually benefit from file-trading. Form the paper - "Artists who are unknown, and thus most helped by file sharing, are those artists who sell relatively few albums, whereas artists who are harmed by file sharing and thus gain from its removal, the popular ones, are the artists whose sales are relatively high." But then "File sharing is reducing the probability that any act is able to sell millions of records, and if the success of the mega-star artists is what drives the investment in new acts, it might reduce the incentive to invest in new talent. This is, at its heart, an empirical question which is left to future work." There is also another compilation of studies on economics of P2P."
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