Abstract: | Paul Samuelson often used the term “Santa Claus economics” for mathematical models with empirically unrealistic assumptions. I focus on one particular member of the Santa Claus family that Samuelson was very sceptical about: homothetic general equilibrium models (where all agents have identical homothetic preferences). I argue that Samuelson's concerns about these models provide insights into how he viewed the relationship between the individual and the market, a relationship that has implications for not only his economic theorising, but also his broader political–economic vision. His criticisms are also relevant to some ongoing debates within contemporary economic theory. |