QoG code: ideaesd_tiers
Number of tiers. The tiers of an electoral system can be understood as the sets of representatives that are elected to the same chamber by the entire electorate of a country. 99 indicates a hybrid system, where one part of the country elects representatives using one electoral system, while another distinct part of the country elects representatives using a different system.
| Dataset | No. Countries |
|---|---|
| Standard cross-section | 179 |
| Standard time-series | 186 |
| OECD cross-section | 32 |
| Dataset | Available for years |
|---|---|
| Standard time-series | 1969-2025 |
This variable has information from 1969 to 2025.