Several internal and external factors which may influence companies to successfully employ sustainable measures are such as:
1) Government support (affordances, attempts to create social norm, reinforcement contingencies)
2) Sustainability reporting (attribution of responsibility, goal-setting, sense of efficacy)
3) Benchmarking (feedback, peer-perceived endorsement)
4) Natural capital (attitudes, values, emotions)
These factors would be elaborated in more detail in the following pages.