Expert-Based Knowledge: Communicating Over Scientific Models

Scientific models structure our perception of reality. This paper studies how we choose among them under expert advice. are formalised as probability distributions over possible scenarios. An is assumed to know the most likely model and seeks communicate it a decision maker, but cannot prove it. As result, communication about cheap talk game. The maker in situation model-uncertainty ambiguity sensitive. I show that information transmission depends on strategic misalignment players and, unlike similar literature, form consensus scientific models. When science divided, there an asymmetry when receiver has maxmin expected utility preferences. No can be conveyed above certain threshold. All equilibria game outcome equivalent partitional equilibrium informative one interim Pareto dominant.