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Why do some countries require political advertisements to identify their sponsors?

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Countries require political advertisements to identify their sponsors primarily as a safeguard against "pernicious" propaganda by hidden persuaders. By mandating that advertisements be clearly labeled, governments aim to increase transparency, which is considered integral to accountability, fair election financing, and the overall health of a democracy.12

This principle of disclosure is intended to help the public identify the interests behind a message, thereby allowing voters to better evaluate the claims being made. In many jurisdictions, this includes requirements for lobbyists and organizations to register with public authorities.1

However, the effectiveness of these measures is often limited. Declared sponsors may be "dummy" organizations that obscure the actual backers, and disclosure requirements are frequently circumvented. Furthermore, while transparency is a vital ethical principle for preventing corruption and ensuring fair political processes, it can sometimes be problematic if it exposes donors to political pressure or if the procedures themselves are used to disseminate disinformation.12