Conrad Heilmann

We analyze the sequential structure of dynamic games with perfect information. A three-stage account is proposed, that species setup, reasoning and play stages. Accordingly, we define a player as a set of agents corresponding to these three stages. The notion of agent connectedness is introduced into a type-based epistemic model. Agent connectedness measures the extent to which agents' choices are sequentially stable. Thus describing dynamic games allows to more fully understand strategic interaction over time. In particular, we provide suffcient conditions for backward induction in terms of agent connectedness. Also, our framework makes explicit that the epistemic independence assumption involved in backward induction reasoning is stronger than usually presumed, and makes accessible multiple-self interpretations for dynamic games.

This paper provides a methodological analysis of Libertarian Paternalism, as put forward in the book Nudge by Richard Thaler and Cass Sunstein (Yale University Press, 2008). Libertarian Paternalism aims to use the accumulated findings of behavioural economics in order to assist decision-makers to make better choices. The philosophical debate about this proposal has focused on normative issues with regards to this proposal. This paper analyses Libertarian Paternalism descriptively and points out four methodological conditions for successful Nudges. On that basis, a methodological critique of Libertarian Paternalism is mounted: the success conditions suggest that Nudges might be even harder to implement and to justify than commonly assumed in the philosophical debate

Ever since the publication of Singer’s (1972) article on ‘Famine, Affluence, and Morality’ have debates about duties to the distant needy been marked by a high degree of controversy. Most contributors discuss how duties are established or influenced by the fact that those in need of help can be geographically close or distant. In other words, they debate the problem of duty and distance from the perspective of duties. Here, we change tack and put the concept of distance at the centre of the analysis. We ask: what precisely is the definition and role of geographical distance in the different contributions? We argue that a distinction between empirical and moral disagreement over geographical distance clarifies several important aspects of the debate. The analysis also sheds new light on duties in the current European refugee crisis.