The 304-page document (pdf), made available on the netzpolitik.org site, contains all the details of the questions that were put to a total of 30,000 people from Germany, France, Poland, Spain, Sweden, and the UK, their answers, and exhaustive analysis. The summary reveals the key results:
In 2014, on average 51 per cent of the adults and 72 per cent of the minors in the EU have illegally downloaded or streamed any form of creative content, with higher piracy rates in Poland and Spain than in the other four countries of this study. In general, the results do not show robust statistical evidence of displacement of sales by online copyright infringements. That does not necessarily mean that piracy has no effect but only that the statistical analysis does not prove with sufficient reliability that there is an effect. An exception is the displacement of recent top films. The results show a displacement rate of 40 per cent which means that for every ten recent top films watched illegally, four fewer films are consumed legally.
That is, there is zero evidence that unauthorized downloads harmed sales of music, books and games. Indeed, for games, there was evidence that such downloads boosted sales:
the estimated effect of illegal online transactions on sales is positive — implying that illegal consumption leads to increased legal consumption. This positive effect of illegal downloads and streams on the sales of games may be explained by the industry being successful in converting illegal users to paying users. Tactics used by the industry include, for example, offering gameplay with extra bonuses or extra levels if consumers pay.