The space of all proportional voting systems and the most majoritarian among them
提出一种介于比例代表制和多数决制之间的投票系统，允许选民投给多个政党名单但最终每张选票只分配给一个政党，从而产生一系列比例代表制的议会，并给出算法找到其中最多数决的结果。
We present an alternative voting system that aims at bridging the gap between proportional representative systems and majoritarian electoral systems. The system lets people vote for multiple party-lists, but then assigns each ballot paper to a single party. This opens a whole range of possible parliaments, all proportionally representative. We show theoretically that this space is convex. Then among the possible parliaments we present an algorithm to produce the most majoritarian result. We then test the system and compare the results with a pure proportional and a majoritarian voting system showing how the results are comparable with the majoritarian system. Then we simulate the system and show how it tends to produce parties of exponentially decreasing size with always a first, major party with about half of the seats. Finally we describe how the system can be used in the context of a parliament made up of two separate houses.