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In this study we reflect on the beauty, elegance, internal consistency, coherence and self-reference of mathematical models in economics – features usually attributed to other fields of study. We argue that the literary character of economic models creates credibility in the models and their results. This is particularly true of neoclassical economic theory which we understand as making up economics’ basic theory and identity. We attribute to economics a certain theological character and argue that credibility in the symbolic system of mathematical models in economics, and in monetary matters in general, is needed to exert real-world economic influence. As such, the mathematical formulation of economic theory generates credibility by involving a method of persuasion that draws our attention to an unusual context in the field of economics, that of beauty. We conclude that the strength of economics is based on ‘performative’ aesthetics. Beauty is apparent in an economic context with respect to the value of money and its symbolic meaning. In fact, money as a symbol representing goods and economic models evoking beautiful mathematical symbols help to accredit one another other.