I thank the Chairman for inviting me to speak to the committee today. It is a great honour to assist it in its deliberations on electoral systems.
I will focus on three aspects of the electoral system. These are the voting system, the political background and current issues under discussion in Germany. Germany has a mixed voting system, often called mixed member proportional representation, which contains elements of a majority voting system and of a proportional representation system. Under the system German voters have two decisions to make. Their first vote determines their choice of constituency candidate, with the candidate who wins the most votes being elected regardless of how his or her party performs in general. These constituency votes ensure that every region in Germany is represented in the German Parliament, the Bundestag. With their second vote voters decide on the relative strength of the parties in the Bundestag. The percentage of second votes won by the parties determines in principle their number of seats and thereby which parliamentary faction or coalition will have a majority allowing them to elect their preferred candidate as Federal Chancellor.
Half of the 598 members of the Bundestag are elected by majority — or perhaps more exactly plurality — vote in each of Germany's 299 single-seat constituencies. The other half are elected via party lists in each of the 16 federal states, the Lånder. The parties establish these lists by nominating candidates according to their procedures and criteria. Places at the top of the list are generally considered to be safe, with election most likely. However, the number of constituency seats won may be the same as the number of seats the party is entitled to according to its share of the second votes, in which case even the top candidate on the list will not be elected unless he or she has won a constituency seat.
If a party wins more constituency seats than it would be entitled to by its share in the second vote, it nonetheless keeps these additional seats, known as "surplus mandates" or "overhang mandates". The present Bundestag has 24 surplus mandates. A party will not be represented in the Bundestag if it fails to win at least 5% nationwide in the second vote unless it wins a minimum of three constituency seats with the first vote. This is the 5% clause.
The German electoral system was devised with the goal of ensuring maximum proportional representation — no vote should be ignored; maximum direct representation with members elected by plurality vote in every constituency; and maximum stability. The 5% clause and the alternative of a minimum requirement of three directly-won seats ensure that a multitude of political splinter parties represented in the Bundestag is avoided. That is one of the lessons we drew from the experience of the Weimar Republic. Furthermore there are no by-elections. If a member of Parliament, regardless of whether he or she was directly elected or selected through a list, loses a seat during a legislative period such as through death, he or she will be succeeded by the next candidate on the party's list. There is one exception to this rule in that holders of surplus mandates are not replaced. A parliamentary majority will therefore normally remain unaffected.
While the importance of the close link between a directly elected member of Parliament and his constituency is highly appreciated, proportional representation is regarded as equally important. The German constitution, the Basic Law, expressly accords political parties a significant role in politics. It is they who select the candidates for both the constituencies and the lists.
Germany has never known primary elections. Candidates are nominated at special party conventions by members of the party. Thus, candidates generally depend to a larger degree on party support than on their personal relationship with the electorate. The latter becomes, after nomination by the party, obviously predominant for constituency candidates but less so for those who are placed on the party list. Competition between party members will therefore not necessarily surface in public debate but usually remains an internal process.
In consequence, the focus of members of the Bundestag is more on national politics. Performance and reputation of the party are what matters most in the elections. Members of the German Bundestag constitutionally have a very independent position, the so-called "free mandate", and are expected to legislate in the interest of the population as a whole, exclusively based on their personal convictions. This is not always easy, either in instances where the interest of party and parliamentary faction invites unanimous voting or for constituency representatives who are more exposed to specific expectations from their electorate.
The German electoral system allows strategic voting by means of splitting votes, whereby one gives the first vote for one party and the second vote for another. In the 2009 elections, for example, an obvious line of reasoning for many voters was to give the first vote to the CDU candidate to enable him or her to win a constituency, and the second vote to the FDP, which had little chance to win a majority in a constituency but was supposed to be strengthened to allow a CDU/FDP coalition to succeed. In fact, the FDP did not win one constituency seat in the 2009 elections, while the Bavarian sister party of the CDU, the CSU, won all the Bavarian constituencies and did not obtain any additional list seat.
At the local and state level, some German Lånder have variations of the list house voting system. Bavaria, for example, has a mixed member proportional representation system for state and local elections in which the list is open or, as it is sometimes called, “ordered”. This open list allows voting with the second vote either for the list drawn up by the party as it stands or for an individual candidate in the list regardless of his or her position on it. Consequently, the voter can move candidates up and down the list, thus modifying the party’s choice. In addition, the calculating procedure is different. In contrast to the national system where only the second votes determine the percentage of a party’s seats, in Bavaria the first and the second votes together determine the percentage. The Bavarian system thus increases the proportionality element even further.
The German constitutional court recently ruled that the system of surplus mandates needed to be modified. While preserving the principle, some technical details on how exactly the number of surplus mandates is calculated need to be changed. One issue is the effect of the so-called negative voting weight that can, in rare cases, lead to a distortion in calculating the respective number of seats. The federal electoral law is currently under review and is supposed to be amended by 2011.
Another current issue is the voting age. In some Lånder the voting age was lowered from 18 to 16. The first change of this kind in local elections took place in Lower Saxony in 1995. Bremen will be the first German Land to allow 16 and 17 year olds to vote in state elections in 2011. On the national level this question is still under discussion.