 Consider first the notions of supervenience and realization. Supervenience is a relationship between properties, kinds, or facts. Roughly speaking, social properties supervene upon individualist properties if and only if there can be no change at the level of social properties unless there is also a change at the level of individualist properties. Otherwise put, the individualist properties fix the social properties. Too see how this works, assume that a football club supervenes on a constellation of individuals with certain beliefs, bearing certain relations to each other, and so on. This being the case, the football club cannot transform into a golf club, say, unless the individuals change some of their beliefs, the relations they stand in, or the like. The individuals’ beliefs, relations, etc. fix the property of their being a football club. The notion of supervenience is often used interchangeably with the notion of realization. Thus, it is said that a constellation of individuals with certain beliefs, relationships, etc. realizes the property of being a football club. Several moderate methodological holists have, in varying ways, expanded on the account of social properties as supervenient properties by presenting considerations in support of supervenient social properties being, in certain cases, causally effective properties (see e.g., Kincaid 1997, 2009; List and Spiekermann 2013; Sawyer 2003, 2005). Their reflections are a response to the so-called exclusion argument, which states that supervenient properties are epiphenomenal because all the causal work is done by the properties that they supervene upon (on this argument, see e.g., Kim 2005). Here is how Christian List and Kai Spiekermann purport to establish that some supervenient social properties are causally effective (List and Spiekermann 2013).