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The availability of digital channels for media distribution has raised many important questions for marketers, notably, whether digital distribution channels will cannibalize physical sales and whether legitimate digital distribution channels will dissuade consumers from using (illegitimate) digital piracy channels. We address these two questions using the removal of NBC content from Apple's iTunes store in December 2007, and its restoration in September 2008, as natural shocks to the supply of legitimate digital content, and we analyze the impact of this shock on demand through BitTorrent piracy channels and the Amazon.com DVD store. To do this we collected two large data sets from Mininova.com and Amazon.com, documenting levels of piracy and DVD sales for both NBC and other major networks' content around these events. We analyze these data in a difference-in-difference model and find that NBC's decision to remove its content from iTunes in December 2007 is causally associated with an 11.4% increase in the demand for NBC's pirated content. This is roughly equivalent to an increase of 48,000 downloads a day for NBC's content and is approximately twice as large as the total legal purchases on iTunes for the same content in the period preceding the removal. We also find evidence of a smaller, and statistically insignificant, decrease in piracy for the same content when it was restored to the iTunes store in September 2008. Finally, we see no change in demand for NBC's DVD content at Amazon.com associated with NBC's closing or reopening of its digital distribution channel on iTunes.Internet, piracy, digital distribution, distribution channels, cannibalization

Digital piracy is seen as a significant problem for the creative industries. Still, while there have been many academic studies showing that piracy hurts sales, there have been far fewer studies analyzing the effectiveness of anti-piracy measures in reversing this effect. This study attempts to address this question by analyzing how the HADOPI "three strikes" law in France affected digital music sales on the iTunes music store.To do this, we obtained a panel of iTunes sales data from the four major music labels (Universal Music, Warner Music, EMI Music and Sony Music) across a broad set of countries. We then applied a difference-in-difference approach, using sales trends in a control group of European countries to simulate the counterfactual of what music sales in France would have been if HADOPI had not been passed. Our results suggest that increased consumer awareness of HADOPI caused iTunes song and album sales to increase by 22.5% and 25% respectively relative to changes in the control group.In terms of robustness, we find that these sales changes are similar for each of the four major music labels, suggesting that our results are not peculiar to any particular label. We also find that the observed sales increase is much larger in genres that, prior to HADOPI, experienced high piracy levels (e.g., Rap and Hip Hop) than for less pirated genres (e.g., Christian music, classical, and jazz). This strengthens the causal interpretation of our results since if HADOPI is causing pirates to become legitimate purchases, its effects should be stronger for heavily pirated music than it is for other music genres.

Digital piracy is seen as a significant problem for the creative industries. Still, while there have been many academic studies showing that piracy hurts sales, there have been far fewer studies analyzing the effectiveness of anti-piracy measures in reversing this effect. This study attempts to address this question by analyzing how the HADOPI "three strikes" law in France affected digital music sales on the iTunes music store.To do this, we obtained a panel of iTunes sales data from the four major music labels (Universal Music, Warner Music, EMI Music and Sony Music) across a broad set of countries. We then applied a difference-in-difference approach, using sales trends in a control group of European countries to simulate the counterfactual of what music sales in France would have been if HADOPI had not been passed. Our results suggest that increased consumer awareness of HADOPI caused iTunes song and album sales to increase by 22.5% and 25% respectively relative to changes in the control group.In terms of robustness, we find that these sales changes are similar for each of the four major music labels, suggesting that our results are not peculiar to any particular label. We also find that the observed sales increase is much larger in genres that, prior to HADOPI, experienced high piracy levels (e.g., Rap and Hip Hop) than for less pirated genres (e.g., Christian music, classical, and jazz). This strengthens the causal interpretation of our results since if HADOPI is causing pirates to become legitimate purchases, its effects should be stronger for heavily pirated music than it is for other music genres.

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