Academic freedom is often described as a cornerstone of democratic society. Politicians regularly claim to defend it, universities invoke it in mission statements and most members of the public say they support it in principle.

So why does it provoke such intense disagreement once it becomes concrete? At first glance, these disputes look like arguments about universities. But our research suggests something else is going on. Public disagreements over academic freedom are not simply about campus policy. They reflect deeper divides over political ideology and trust in expertise.

Debates about academic freedom have become increasingly prominent in the UK. New free speech legislation to protect academic freedom in universities was introduced in 2025. Disputes over offensive research, controversial speakers or international partnerships routinely make headlines.

Similar tensions exist elsewhere, even if they are less visible. In Japan, for example, academic freedom is formally protected in article 23 of the constitution, but scholars often report subtle pressures to avoid politically sensitive topics.

In a new study, we surveyed over 3,300 people in the UK and Japan to examine how citizens understand academic freedom when it is presented in concrete terms rather than abstract slogans.

Instead of asking whether people support “academic freedom” in general, we asked how much they agreed or disagreed with specific scenarios. These included whether universities should protect research that causes offence, and........

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