NEWS A study of file-sharing's effects on music sales says online music trading appears to have had little part in the recent slide in CD sales.
For the study researchers at Harvard University and the University of North Carolina tracked music downloads over 17 weeks in 2002, matching data on file transfers with actual market performance of the songs and albums being downloaded. Even high levels of file-swapping seemed to translate into an effect on album sales that was "statistically indistinguishable from zero," they wrote.
"We find that file-sharing has only had a limited effect on record sales," the study's authors wrote. "While downloads occur on a vast scale, most users are likely individuals who would not have bought the album even in the absence of file sharing."
The study, the most detailed economic modelling survey to use data obtained directly from file-sharing networks, is sure to rekindle debates over the effects of widely used software such as Kazaa or Morpheus on an ailing record business.
Big record labels have seen their sales slide precipitously in the past several years, and have blamed the falling revenue in large part on rampant free music downloads online. Others have pointed to additional factors, such as lower household spending during the recession, and increased competition from other entertainment forms such as DVDs and video games, each of which have grown over the same time period.
Executives at file-sharing companies welcomed the survey, saying it should help persuade reluctant record company executives to use peer-to-peer networks as distribution channels for music.
"We welcome sound research into the developing peer-to-peer industry, and this study appears to have covered some interesting ground," said Nikki Hemming, CEO of Kazaa parent Sharman Networks. "Consider the possibilities if the record industry actually cooperated with companies like us instead of fighting."
The study, performed by Harvard Business School associate professor Felix Oberholzer and University of North Carolina, Chapel Hill associate professor Koleman Strumpf, used logs from two OpenNap servers in late 2002 to observe about 1.75 million downloads over their 17 week sample period.
That sample revealed interesting behavioural, as well as economic, data. Researchers found that the average user logged in only twice during that period, downloading about 17 songs. Some people vastly overshot that average, however - one user apparently logged in 71 times, downloading more than 5,000 songs.
The two professors narrowed their sample base by choosing a random sample of 500 albums from the sales charts of various music genres, and then compared the sales of these albums to the number of associated downloads.
Even in the most pessimistic version of their model, they found that it would take about 5,000 downloads to displace sales of just one physical CD, the authors wrote. Despite the huge scale of downloading worldwide, that would be only a tiny contribution to the overall slide in album sales over the past several years, they said.
Moreover, their data seemed to show that downloads could even have a slight positive effect on the sales of the top albums, the researchers said.
The study is unlikely to be the last word on the issue. Previous studies have been released showing that file sharing had both positive and negative effects on music sales.
The Recording Industry Association of America was quick to dismiss the results as inconsistent with earlier findings.
"Countless well-respected groups and analysts, including Edison Research, Forrester, and the University of Texas, among others, have all determined that illegal file-sharing has adversely impacted the sales of CDs," RIAA spokeswoman Amy Weiss said in a statement. "Our own surveys show that those who are downloading more are buying less."
John Borland writes for CNET News.com






Comments
There are 8 comments. Join the discussion
1. Tormod Carstens
This certainly reflects my own behaviour. I have never understood the threat view of the industry. When I download music, it's normally old stuff that's not even available anymore (I'd love to hear 'Next' with Alex Harvey right now, but the CD isn't exactly easy to get nowadays, is it...), or I download as a preview before buying. If anything, filesharing has increased my buying CDs. however, the 'war' on filesharing has made a BIG impact on my attitude towards the music industry. I used to think they were a "necessary evil" that I would defend even if they did give the artist a way too tiny share of the profits, but now they're in the "shameless ba****rd selfish capitalist" bracket and I couldn't care less if the whole dirty business collapsed.
2. anonymous
So: university-level research finds file sharing does not reduce cd sales - record industry denounces research.
That's a surprise!
3. Andy
Well I don't download music at all, but I have reduced the amount of CD's I buy, mainly because the quality of music that I want just isn't being produced anymore. Until the record companies get their fat heads around the fact that I don't want to buy manufactured pop trash I'm happy to stick with my back catalogue thankyou.
It's the usual excuse, it's everybody else's fault except their own...Don't they realise what Idiots they and the RIAA make themselves look.
4. Alan Reid
Pretty sure that's true. Nammer and Hail did a similar study and found the perceived quality of the music influences CD sales more than the propensity to download.
5. P Biggs
The public have been complaining for years about the artificially high price of CDs. Now the record companies are paying the price for a narrow output of low quality music by manufactured boy and girl bands.
A fundamental rule of marketing is that unreasonable profits attract competition ino the market. If any record company execs care to contact me, I can point them in the direction of several relevant case studies!
6. Grumpy
In response to Tormod's comment, Next by the SAHB is in fact very easily available (on the original album, or on a recent compilation of Jacques Brel cover versions, both going under the tile "Next" -- have a browse through Amazon).
This is because the big guns in the record industry are actually more concerned about milking the last drop of profit from the back catalogue, where little or no investment is required for significant returns. I suspect that the major downloading activity is in relation to newer and more innovative music which is poorly served by an industry that is happier to serve up pap like Melua, Dido and Jones.
7. kirsty
i've bought more cd's since i've been on broadband and can download music from a peer to peer network than i've ever bought before. It has awoken my love of music.
8. Jay
I’m sick to the back teeth of the constant moaning by the music industry that file downloading is hitting CD sales. Until the industry execs actually pull their fingers out of whatever orifice they reside and actually promote some ‘real’ talented artists, as opposed to the shameless talentless 'quick buck' morons that they prefer, I won’t be buying any CD’s anytime soon.