Table 1
Overview of party classifications used in the analysis.
| Classification label | Overall number of groups | List of groups |
|---|---|---|
| Party families | 6 | Fiscally-conservative parties; social-democratic parties; Christian-democratic parties; communist parties; other parties; non-voters |
| Left-wing/Right-wing | 4 | Left-wing parties; Right-wing parties; other parties; non-voters |
| Government/Opposition | 4 | Government parties; Opposition parties; Non-parliamentary parties; non-voters |
Source: Authors based on the literature presented in Supplementary Appendix 1.

Figure 1
Spatial polarization of voting in Czechia: Comparison of statistical indices on the level of electoral districts.
Source: Authors based on their own calculation; data: ČSÚ (2024).

Figure 2
Spatial polarization of voting in Czechia: Comparison of Information theory index results across geographical scales.
Source: Authors based on their own calculation; data: ČSÚ (2024).
