After its 60th Annual Meeting on 23 June 2009, the Institute celebrated its 60th birthday on its premises in Poschingerstrasse.
The Ifo Institute was established in January 1949 from the Süddeutsche Institut für Wirtschaftsforschung and the Informations- und Forschungsstelle at the Bavarian Statistical Office. One of the founders was Prof. Ludwig Erhard, the architect of the German social market economy.
In September 1993 the Ifo Dresden subsidiary started its work, supported by the Free State of Saxony and by its own contract research.
In September 1997, a co-operation agreement was signed between the Bavarian State Government, the LMU and the Ifo Institute, which formed the basis for the first joint appointment of an Ifo president, Prof. Sinn, who assumed office in February 1999. In the same year CESifo GmbH, a joint subsidiary of the LMU and the Ifo Institute, was established.
After a unanimous decision the Senate of the LMU the Bavarian State Government, the Ifo Institute was named an “Institute at the University of Munich” in August 2002.