Multi-stakeholder initiatives (MSIs) involve joint decision-making between state and non-state actors on issues such as rule-setting and implementation. While non-state actors have deeper legitimacy in negotiations, true joint decision-making power may be uncertain. MSIs can be categorized based on their purpose, such as dialogue, institution-building, rule-setting, rule implementation, or rule monitoring. They face challenges including uneven representation and power dynamics between stakeholders, as well as differences in language, culture, and preconceptions. Validation of MSIs' effectiveness requires consideration of both monitoring and the quality of the multi-stakeholder process itself.