The collective welfare dimension of dark patterns regulation

Dark Patterns are interface design elements that can influence users' behaviour in digital environments. They can cause harm, not only on an individual but also a collective level, by creating behavioral market failures, reducing trust in markets and promoting unfair competition and data dominance. We contend that these collective effects of Dark Patterns cannot be tackled by existent laws, and thus call for policy intervention. This article reviews how existing and proposed laws in Europe and the US, namely the EU Digital Services Act and Digital Markets Act as well as the U.S. DETOUR and AICO Acts, address these collective dimensions of welfare and add to existing protection. We find that the novel legislative measures attain that goal to varying degrees. However, the collective welfare perspective may prove useful to both support a risk-based approach to the enforcement and provide guidance as to which practices should be addressed as priority.