Consensus is a form of group decision-making that reflects the perceived best possible scenario for the greatest number of people. If an individual or a minority cannot support the decision, it can be blocked. Consensus and unanimity are not the same; the decision-rule decided upon by the organization provides the threshold for how many individuals or groups must agree to the consensus for it to be implemented.
Input: a group of individuals willing to collaborate and compromise for a decision with an eye toward unity; individuals with diverse delegated roles like facilitator, timekeeper, and notetaker (though positions and responsibilities may vary among groups); a decision-rule agreed upon by the organization
Output: a decision that addresses the needs of the greatest number of people in the group based on compromise; an equitable environment for stakeholders
In Western contexts, consensus as a decision-making process dates back to the 17th century Quakers. Other religious groups have history of consensus as decision making, including Anabaptists. A process similar, though not exactly reflective of modern consensus, was prevalent among indigenous groups like the Ayamara, Haudenosaunee, and Saharan San bushmen. These groups had governance processes that strove to address the needs of the greatest number of people through participatory culture.
The 1960’s and ‘70’s demonstrated modern consensus process in the United States through social movements like the Civil Rights Movement and Women’s Movement. Later, movements like the World Trade Organization protests in Seattle and Occupy movement around the globe established a strong foundation in consensus decision-making.
While consensus is still used in social movements, many co-operative businesses find it an important hallmark of their organizational decision-making.