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Before researching, I first did a review of the existing literature regarding the topic of music downloading.
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1) The Effect of File Sharing on Record Sales-An Empirical Analysis; Felix Oberholzer-Gee, Harvard Business School; Koleman Strumpf, University of North Carolina, Chapel Hill; December 2004.
This is the one of the most relevant and recent literary sources that I have found. This study monitored 20 million downloads each week, and tallied them with the specific record sales. Using complex algorithms, the team established that the record sales were not affected one bit by the illegal downloading of music.
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2) Measuring the Effect of Music Downloads on Music Purchases; Alejandro Zetner, University of Chicago, 2004.
This study analyses the rise and fall of p2p software and networks like Morpheus and iMesh. More interestingly, it observes the sudden decline in record sales after Napster's birth, and the drastic increase in CD shipment after Napster was outlawed. All signs point to the fact that music downloads do affect music purchases. However, Zetner's conclusion was that music downloads had an effect that was statistically indistinguishable from ZERO.
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3) Is p2p Dying or just Hiding?; Thomas Karagiannis; Andre Broido; Nevil Brownlee; K.C Claffy; Michalis Faloutsos; Globecom 2004; December 2004. www.caida.org/outreach/papers/2004/p2p-dying/
Going beyond the 'known port' limitation by reverse engineering the protocols and identifying characteristic strings in the payload, they hypothesize that p2p traffic, and the downloads that occur within the networks has necver declined, as in their data sources, p2p traffic had never decresed; only increased.
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