@article {64191,
	title = {On Waves, Clusters, and Diffusion: A Conceptual Framework},
	year = {2005},
	note = {},
	month = {May 1, 2005},
	abstract = {This article makes a conceptual and theoretical contribution to the study of diffusion. The authors suggest that the concept of diffusion be reserved for processes (not outcomes)characterized by a certain uncoordinated interdependence. Theoretically, the authors identify the principal sources of clustered policy reforms. They then clarify the characteristics specific to diffusion mechanisms and introduce a categorization of such processes. In particular, they make a distinction between two types of diffusion: adaptation and learning. They argue that this categorization adds conceptual clarity and distinguishes mechanisms with distinct substantive consequences.  Keywords: diffusion; clustering; convergence; policy reform; adaptation; learning; cluster decision making.},
	author = {Beth A. Simmons}
}
