Abstract: | Increasingly, scholars of legislative politics propose comparative analyses of parliamentary voting behaviour across different countries and parliaments. Yet parliamentary voting procedures differ dramatically across parliamentary chambers and ignoring these differences may, in the extreme, lead to meaningless comparisons. This paper presents a first glimpse at a comprehensive data collection effort covering more than 250 parliamentary chambers in 176 countries. Focusing on European legislatures it assesses what explains the differences in the rules among chambers. It is found that incentives linked to MPs’ visibility contribute to explain the transparency of the adopted voting procedures. |