Study: P2P effect on legal music sales

Found on Ars Technica on Sunday, 11 February 2007
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A new study in the Journal of Political Economy by Felix Oberholzer-Gee and Koleman Strumpf has found that illegal music downloads have had no noticeable effects on the sale of music, contrary to the claims of the recording industry.

Analyzing data from the final four months of 2002, the researchers estimated that P2P affected no more than 0.7% of sales in that timeframe.

"Using detailed records of transfers of digital music files, we find that file sharing has had no statistically significant effect on purchases of the average album in our sample," the study reports. "Even our most negative point estimate implies that a one-standard-deviation increase in file sharing reduces an album's weekly sales by a mere 368 copies, an effect that is too small to be statistically distinguishable from zero."

That's what users have been saying for years but the industry simply doesn't believe that the market changed; oh, and most of today's music is not even worth listening to.