The SPID data include information on the year of adoption for over 700 policies in the American states. For each policy we document the year of first adoption for each state. Adoption dates range from
Hannah, A. Lee and Daniel J. Mallinson. Forthcoming. "Defiant Innovation: The Adoption of Medical Marijuana Laws in the American States." Policy Studies Journal.
These data include measures of state policy innovativeness drawn from a database of over 180 different policies as used in Boehmke and Skinner (2012) to construct static and dynamic measures covering
The file Schneider_replication_file_reply.R contains all the code for first obtaining the data and then performing the analyses performed in the article. The file Schneider_PA_supplement.pdf contains
Many explanations have been offered for why replication rates are low in the social sciences, including selective publication, p-hacking, and treatment effect heterogeneity. This article emphasizes th
