Data & Software
Replication Data: The replication data and code for most of my published papers is available through the Harvard Dataverse. Please see my research page for direct links.
Mass Ideology of U.S. Geographies from 2000-2014: Updated cross-sectional estimates of the political liberalism/conservatism (ideology) of states, congressional districts, counties, cities, state senate and assembly districts based on my JOP article with Chris Tausanovitch on "Measuring Constituent Policy Preferences in Congress, State Legislatures and Cities" are available here.
(last updated in 2015)
Mass Ideology and Policy Liberalism of American States from 1936-2018: Updated dynamic estimates of the political liberalism/conservatism (ideology) of the mass public and policies in each state based on AJPS and APSR articles with Devin Caughey are available here.
(Note: Last updated early summer 2019. Version 2019.1 includes updated version of our estimates of state's policy liberalism. We'll post updated estimates of the policy ideology of each state's mass public later this summer. )
Mass Ideology of European Publics from 1981-2016: Dynamic estimates of the political liberalism/conservatism (ideology) of the mass public in each European country based on my APSR article with Tom O'Grady and Devin Caughey are available here.
DGO: Dynamic group opinion R package developed with James Dunham and Devin Caughey. Implements and extends the dynamic group IRT model from my Political Analysis paper with Devin Caughey. Description and vignette here.