Fig. 6From: Conceptual framework for increasing legitimacy and trust of sustainability governance“The Governance Triangle” showing seven categories of governance systems based on the main types of involved actors. The associated types of regulatory activities can be described as (1) traditional top-down legal standards, typically laws, (2) self-regulation, (3) third-party private regulation, (4) standards of firms influenced by states (co-regulation), (5) standards of NGOs influenced by states (co-regulation), (6) joint efforts between firms and NGOs, (7) joint efforts between firms, NGOs, and states (transnational regulation). Redrawn after Abbott and Snidal [165] and Purnhagen [166], see also [170]Back to article page