We introduce and justify a taxonomy for the structure of markets and minimal institutions which appear in constructing minimally complex trading structures to perform the functions of price formation, settlement and payments. Each structure is presented as a playable strategic market game and is examined for its eﬀiciency, the number of degrees of freedom and the symmetry properties of the structure.
Shubik, Martin and Smith, Eric, "Structure, Clearinghouses and Symmetry" (2003). Cowles Foundation Discussion Papers. 1688.