Matt Ridley rounds up some data to explain America's constantly angered political group: the libertarians.
It was hardly surprising that the team found that libertarians strongly value liberty, especially the "negative liberty" of freedom from interference by others. Given the philosophy of their heroes, from John Locke and John Stuart Mill to Ayn Rand and Ron Paul, it also comes as no surprise that libertarians are also individualistic, stressing the right and the need for people to stand on their own two feet, rather than the duty of others, or government, to care for people.
Perhaps more intriguingly, when libertarians reacted to moral dilemmas and in other tests, they displayed less emotion, less empathy and less disgust than either conservatives or liberals. They appeared to use "cold" calculation to reach utilitarian conclusions about whether (for instance) to save lives by sacrificing fewer lives. They reached correct, rather than intuitive, answers to math and logic problems, and they enjoyed "effortful and thoughtful cognitive tasks" more than others do.
The researchers found that libertarians had the most "masculine" psychological profile, while liberals had the most feminine, and these results held up even when they examined each gender separately, which "may explain why libertarianism appeals to men more than women."