July 2014 Update: Aggregate Data for Ideological Mapping of American Legislatures
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The July 2014 Shor-McCarty state legislative aggregate ideology data is being released as an update to the data underlying Shor and McCarty 2011. These are based on individual-level ideal point estimates described fully in that article. Estimates are all in NPAT common ideological space to facilitate explicit comparisons across time and between states. The new data spans 1993 through 2013, with an 342 additional chamber-years of new data, representing a 25% increase over the May 2013 update.
创建时间：
2014-07-23
