Replication data for: Sources of Variation in the Frequency of Statewide Initiatives: The Role of Interest Group Populations

In this article I study the factors that determine the number of initiatives that appear on statewide ballots, with an emphasis on the characteristics of state interest group populations. In particular, I test whether the size of state citizen or economic group populations influences the frequency of initiative use. The relationship between these two categories of groups and initiative use is important in light of recent claims that the initiative process no longer benefits citizen groups and is now dominated by economic interests. In addition, I consider the role of other factors, including initiative regulations, state political characteristics, state economic performance and state demographic characteristics. My results indicate that states with more citizen groups have more initiatives overall and in specific issue areas and that the number of economic groups has a negative or negligible effect.本文旨在探究影响全州范围内倡议公投提案数量的各类因素，重点关注各州利益群体的构成特征。具体而言，本文将检验各州公民利益群体或经济利益群体的规模是否会对倡议公投的使用频次产生影响。鉴于近期有观点认为倡议公投程序已不再惠及公民利益群体，转而由经济利益集团主导，因此这两类群体与倡议公投使用之间的关联具有重要研究价值。此外，本文还将考量其他影响因素，包括倡议公投创制规程、各州政治特征、州经济运行状况以及人口统计特征。本文研究结果显示，公民利益群体数量更多的州，其全州范围内及特定议题领域的倡议公投提案数量也更多；而经济利益群体的数量则对倡议公投产生负向或可忽略的影响。