The constructive vote of no confidence (konstruktives Misstrauensvotum, moción de censura constructiva) is a variation on the motion of no confidence that allows a parliament to withdraw confidence from a head of government only if there is a positive majority for a prospective successor. The principle is intended to ensure governments' stability by making sure that a replacement has enough parliamentary support to govern.
The concept was introduced on a national scale in West Germany's 1949 constitution, which remains in force after the German reunification; it has been adopted since the 1970s in other nations like Spain, Hungary, Lesotho, Israel, Poland, Slovenia, Albania, and Belgium.
Politics of Germany
Governments in the post-WW1 Weimar Republic were very unstable. Since the only election threshold for the Reichstag was that a party had to have received at least 30,000 votes in a single district, it was possible to get a seat with as little as 0.1 percent of the vote (e.g., People's Justice Party in July 1932). This resulted in a fragmented parliament, making it difficult for a government to retain a majority. Furthermore, as the German Empire had not been a parliamentary system, the politicians who had served in the pre-war Reichstag had little experience with coalition governments, which were an absolute necessity given the fractured political landscape. The parties representing the political center-left – the Social Democratic Party (SPD), Centre Party and Progressive People's Party – had come together for the Reichstag Peace Resolution during World War I and had experience with cross-party cooperation through the Inter-Party Committee (:de:Interfraktioneller Ausschuss), but those efforts were directed against the government of the emperor and chancellor, not the work of a coalition of parties supporting a government agenda with difficult Realpolitik considerations. The three parties made up what was called the Weimar Coalition and formed four of the early cabinets under the new Weimar Constitution.