Agent-based Modeling and the Sociology of Money: a Framework for the Study of Coordination and Plurality

The institution of money can be seen as a foundational social mechanism providing communities with the ability to quantify the results of economic processes and collectively regulate independent activities of production and trade – money can be said, indeed, to constitute the micro-macro link in economics. As such, investigations of money’s role in the economy can be fruitfully combined with the tools of social simulation. This paper revisits some of the main positions taken in the contested landscape of monetary theory, evaluating how they might serve as a foundation for the development of a new generation of conceptual and empirical agent-based models.We start out by presenting a comparative review of the way different intellectual traditions in mainstream economics, heterodox economics, and economic sociology attempt to specify the nature of money as an institution and clarify its role in the economy. We extract the key "concepts of money" that each approach emphasizes, paying especially close attention to the contrast between the sociology of money and the microfoundations-related traditions in economics (focusing on "money is memory" models, search-theory and mechanism design). We then review the current literature applying agent-based modeling to questions surrounding the nature of money, assessing some of the main contributions from the perspectives of generative epistemology and of the key concepts identified above. We conclude by indicating different research directions in which we believe agent-based models, in combination with the sociology of money, still have the potential to provide new answers to old questions in monetary theory: by clarifying convergence processes related to money of account, by illustrating the formation of economic structure through symbolic mediation, by constructing tools for analyses of intersubjectivity and coordination, or by providing formal generalization to the social-monetary patterns that are currently being revealed in the wealth of empirical data originating from digital complementary currencies and new histories of money.