Two datasets on electoral institutions, one describing 867 legislative elections and the other describing 294 presidential elections. Another dataset combining the first two in country-year format is also available.
“The dataset covers a wide range of institutional features including regime type, the electoral formula, the average and median district magnitude, the number of constituencies and upper tier seats, assembly size etc.. It also includes information on the effective number of electoral and legislative parties.”
Geographic Coverage: 199 countries
Time Period: 1946-2000
Variables: see the codebook
Documentation: Codebook
Primary Investigator: Matt Golder, Florida State University
Format: Excel tables
Reference: See “Democratic Electoral Systems Around the World, 1946-2000” Electoral Studies 24: 103-121