Announcement: The Concurrence Matrix


Announcing a new data analytics tool for SCOCA watchers: a justices voting relationship matrix, available here: SCOCA Justices Concurrence Matrix

Similar to the SCOTUSblog voting relationships chart on its statistics page (scroll to the bottom), this tool tracks the agreement rate of the justices relative to each other as a percentage value.

The methodology is simple: any justice who concurs in the judgment counts as an “agree” in a given case even if that justice writes separately. SCOTUSblog does the same, counting agreement “in full, in part, or in judgment.”

You will note that the “KW” values are grayed out. That will change only when Justice Werdegar’s empty seat is filled.