Marco Hausmann has written a dissertation about free will and determinism at the University of Munich. His research areas include logic, metaphysics, philosophy of freedom and philosophy of religion. He is author of several papers such as ‘The Actual Challenge for the Ontological Argument’ (Analysis, 2022)’, ‘The Uniqueness of Necessary Truth and the Status of S4 and S5’ (Theoria, 2021), ‘Against Kripke’s Solution to the Problem of Negative Existentials’ (Analysis, 2019) and ‘The Consequence Argument Ungrounded’ (Synthese, 2018). Together with Joerg Noller, he is editor of the book ‘Free Will: Historical and Analytic Perspectives’ (Palgrave Macmillan, 2021).