“Minor policy change may occur over time, through a process called “enlightenment” (Sabatier, 1991, p. 148) whereby new information is introduced, and advocacy coalitions iteratively integrate this new policy knowledge, converging on policy beliefs that result in a policy outcome.”
Shanahan, E. Jones, M. and McBeth, M. 2011. Policy Narratives and Policy Processes. Policy Studies Journal, Vol. 39 (3). pp.535-561.
See also policy learning.