Twice a year the Ifo Institute publishes the Ifo Economic Forecast on the development of the German and the world economy for the current and the subsequent year. Because of the strong links of the German economy to the world economy and in particular to the European economy, a forecast is also made for the European Union and other important countries. A well-founded analysis of the economic situation is the basis of the forecast.
For information on forecasting methods and accuracy refer to the project page: Ifo Economic Forecast
The detailed versions of the Ifo Economic Forecast are published in ifo Schnelldienst.
Pages with links on summary, detailed version (in German), tables and charts:
Current release
Previous releases
Ifo Project
Ifo Policy Issues
Joint Economic Forecast Spring 2012April 2012