The Dynamics of State Policy Liberalism, 1936-2014
The Dynamics of State Policy Liberalism, 1936-2014
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DOI：
10.1111/ajps.12219
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发表时间：
2016-10-01
影响因子：
4.2
通讯作者：
Warshaw, Christopher
中科院分区：
文献类型：
--
作者：
Caughey, Devin;Warshaw, Christopher
我们将动态潜变量模型应用于 8 个十年（1936-2014）期间收集的 148 项政策的数据，得出了美国各州政策自由主义的第一个年度衡量指标。我们对国家政策自由主义的动态衡量标志着对现有衡量标准的重要进步，几乎所有现有衡量标准都是纯粹的横截面，因此不能用于研究政策变化。我们发现，总体而言，美国各州的政策自由主义在 1930 年代至 1970 年代稳步上升，然后基本趋于稳定。大多数州的政策自由主义相对而言保持稳定，尽管一些州随着时间的推移发生了很大的变化。令人惊讶的是，我们还发现很少有证据表明国家政策产出具有多维性。我们对国家政策自由主义的新估计广泛应用于政治发展、代表性、问责制和政治学中其他重要问题的研究。
Applying a dynamic latent-variable model to data on 148 policies collected over eight decades (1936-2014), we produce the first yearly measure of the policy liberalism of U.S. states. Our dynamic measure of state policy liberalism marks an important advance over existing measures, almost all of which are purely cross-sectional and thus cannot be used to study policy change. We find that, in the aggregate, the policy liberalism of U.S. states steadily increased between the 1930s and 1970s and then largely plateaued. The policy liberalism of most states has remained stable in relative terms, though several states have shifted considerably over time. We also find surprisingly little evidence of multidimensionality in state policy outputs. Our new estimates of state policy liberalism have broad application to the study of political development, representation, accountability, and other important issues in political science.