“…Although it is often claimed that online services, such as iTunes, Spotify, and Netflix, can help to combat file sharing, 4 empirical academic literature on this matter is scarce. In a theoretical article, Thomes (2013) concluded that a free, ad-sponsored music streaming service can be effective against file sharing, given a certain level of copyright enforcement. Another theoretical article by Halmenschlager and Waelbroeck (2014) concluded that the freemium model can help fight piracy without a need for stricter enforcement, as long as restrictions on the free version are limited.…”