1. Project Management Institute. (2021). A Guide to the Project Management Body of Knowledge (PMBOK® Guide) – Seventh Edition. Project Management Institute
Inc.
Page 251
Glossary: Defines Risk Appetite as "The degree of uncertainty an organization or individual is willing to accept in anticipation of a reward."
Page 252
Glossary: Defines Risk Tolerance as "The specified range of acceptable variation an organization is willing to accept for a project or project objective."
2. Committee of Sponsoring Organizations of the Treadway Commission (COSO). (2017). Enterprise Risk Management—Integrating with Strategy and Performance.
Page 6
Executive Summary: Defines Risk Appetite as "The types and amount of risk
on a broad level
an organization is willing to accept in its pursuit of value." This foundational document in risk management reinforces the PMI definition.