Germany's commercial prospects have deteriorated again, exacerbating concerns in the market about the recession of Europe's largest economy, and it is unlikely to rebound quickly in the short term. In September, Ifo Institute's German national business expectations index fell to 86.8, from 86.3 the previous month, still the lowest level since February, slightly below analysts' estimates. "The weakness is mainly in very important manufacturing," said Ifo President Clemens Fuest in an interview with Bloomberg Television on Tuesday. "We do see a general weakness in the industry - including machinery, chemicals, electrical equipment, and autos. Companies tell us they have fewer orders, and now the service sector is also showing weakness." A series of bad news indicates that Germany's important autos sector is in a slump, reigniting discussions about a shrinking German economy.