Abstract
I have presented a Frankfurt-style argument (Pereboom 2000, 2001, 2003) against the requirement of robust alternative possibilities for moral responsibility that features an example, Tax Evasion , in which an agent is intuitively morally responsible for a decision, has no robust alternative possibilities, and is clearly not causally determined to make the decision. Here I revise the criterion for robustness in response to suggestions by Dana Nelkin, Jonathan Vance, and Kevin Timpe, and I respond to objections to the argument by Carlos Moya and David Widerker, in the process of which I refine the Tax Evasion example