Unlike many of the papers at this Conference, this paper concerns games against nature rather than games against strategically-motivated human (or computer) opponents. Nevertheless, games against nature are relevant to games against opponents - as the literature makes clear. Indeed, one of the seminal pieces of that literature, John von Neuman/Oskar Morgenstern, The Theory of Games and Economic Behaviour (1947)¹, whilst ostensibly addressed to the theory of strategic games, derived one of the key elements of the theory of rational decision making against nature — namely Expected Utility theory — as a key component of the theory of strategic games. Moreover, many of the interesting new developments in Game Theory are pursuing the implications of non-Expected-Utility behaviour in games Contrariwise, some recent developments in individual decision-making, such as those related to intertemporal decision-making, are using results from the theory of games. Clearly, developments in each branch of the literature are relevant to the other branch.