Some people think that there's no libertarian free will. But they might be making the additional claim that our intentions and our desires and our deliberations have no even immediate causal effect on our behavior, he says. This could make them more likely to cheat or less likely to co-operate with others. And another possible explanation is that you don't even need to threaten a belief - any so of negative affect might be enough to make people engage in something like onethical behaviour.