State policy innovativeness scores V1.1

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 period 1912-2009. The data include three static innovation scores. The first revisits and updates the original approach taken by Walker by calculating his average innovation score with our new policies, extending his scores into the twenty-first century. The second two measures address various biases and shortcomings in the original measure. In particular, we recommend use of our adoption rate score, which builds on the logic of EHA to address issues such as right-censoring. Our rate measure also facilitates construction of a new, dynamic measure of innovativeness. These data include a biennial version of this measure for all 50 states from 1913-2008 (with coverage of AK and HI since 1959). We provide measures of uncertainty for all of our scores as well as information about the policies and the raw adoption data upon which they are constructed. See the README file for changes from V1.0 to V1.1.