 The minisum rule applied to merge the judgment sets of the three judges in the previous section is based on the same principles as the Kemeny rule, a well-known preference aggregation rule (Kemeny 1959). Unlike what happened in social choice, at the beginning the literature of judgment aggregation focused on the axiomatic method and only few concrete aggregation rules were proposed and studied. Arguably, the interest of researchers from computer science and multi-agent systems for judgment aggregation lead to the definition of more concrete aggregation rules and to the investigation of their relations. The same idea of minimization that plays such a crucial role in belief merging can be found as a principle in the definition of several voting rules in social choice theory. For instance, the minisum rule turned out to be equivalent to several other rules recently introduced in the judgment aggregation literature (Lang et al. 2017).