The Hare Question in Assurance Games: Practical Problems and Insights From Robotic Surgery

We examine in this article a frequently overlooked, if not ignored, premise underlying the canonical assurance game model: Hunters could potentially bag more than a single hare (or two) in place of the prized stag. Whether a risk-dominant equilibrium is necessarily inefficient or inferior to one that is assumed to be payoff-dominant is the question we seek to address. In doing so, we suggest plausible variations of the model with different game-theoretic realizations. Single-play illustrations drawn from robotic surgery underscore their practical implications for health care economics and management. The robotic technology revolution amplifies the rational and interactive choices available to players under conditions of risk and uncertainty. Like the canonical model, our illustrations involve insulated, self-interested actions arising from the presence or absence of trust and coordination among players. They differ from the canonical model by allowing for multiple, potentially cooperative equilibrium payoffs. Any cooperative action can be considered optimal if players coordinated on it, taking fully into account the quantifiable and multiplicable value of their second best strategies. Nonetheless, we suggest that any dominant solution/s should accommodate best evidence in health care to provide patients with the most suitable treatments and services. There lies the challenge in reconciling theory and practice in health economics. JEL Classifications: C70, C71, I11, I1