Here you can obtain the replication materials for "Ideological Extremism, Perceived Partisan Polarization, and Democratic Support". Included files:
* Online appendix polarization.pdf: describes data sources and required code to create new variables, replicate analyses, and create tables and figures. Includes also tables and figures mentioned but not included in the main manuscript.
* Merge57+PABvariables050521.dta: Stata file with the 2019 Comparative National Election project merged dataset.
* V-Dem_CNEP_ElecYrs_421.dta: Stata file with V-Dem v2xregime data.
* Analysis_extremism_polarization.do: Stata .do file creating all main independent and dependent variables and producing all OLS analyses and tables.
* Extremism_polarization_GAM.R: R script performing GAM analyses and plots.