Germany’s IW institute will raise its national growth forecast as an “astoundingly robust” economy seems to be “disconnected” from the rest of Europe, Director Michael Huether was cited as saying by Euro am Sonntag.

The Cologne, Germany-based institute plans to publish its 2012 growth forecast on April 23, the German newspaper reported in a preview of an article that will be published tomorrow. Huether didn’t provide the raised forecast, saying only that the 3 percent growth seen in 2011 isn’t likely to be reached, according to the report.

To contact the reporter on this story: Niklas Magnusson in Hamburg at nmagnusson1@bloomberg.net

To contact the editor responsible for this story: Angela Cullen at acullen8@bloomberg.net