https://www.sciencedirect.com/science/article/pii/S0099133320301117

This survey assessed the experiences of faculty who participated in a textbook affordability program at Rutgers University. The program provided incentive awards in exchange for replacing commercial textbooks with affordable course materials such as open educational resources (OER), self-developed course materials, course reserves, or library-licensed content.

indicate that even participating faculty vary greatly in their knowledge and use of OER and their interest in authoring open textbooks. Ultimately, these survey results indicate the lack of a “one size fits all” approach to incentivizing the adoption of affordable course materials, the use of OER, and the creation of new open resources.