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Most research on the diffusion of policy innovations focuses on the date of adoption and its correlates. This research examines an aspect of innovation which has received little attention: policy reinvention during the initial diffusion process and through amendment. The central proposition is that even though a set of laws or policies may be grouped into one broad, general category, states create substantively different policies through reinvention, which has important consequences for groups affected by the legislation. Hypotheses concerning the relationship between date of adoption and policy content and the effect of particular controversial policy provisions on reinventions are examined. The study has general implications for the study of the diffusion of innovations and policy in state politics.
Glick et al. (Thu,) studied this question.