A pilot ?ying to a distant city needs to check his position, ?ight path and weather conditions, and must constantly keep his plane under control to land safely.TheIfosurveydataprovideadvanceinformationonchangingeconomic weather conditions and help keep the economy under control. To be sure, by their very nature they only provide short-term information. But like a plane, the economy will not be able to reach its long-term goals if it strays o? course in the short term. The Ifo survey data provide the most comprehensive and accurate, - to-date database in Europe on the state of the business cycle, and the Ifo climate indicator, sometimes simply called "The Ifo", is the most frequently cited indicator of its kind in Europe. Both the European stock market and theeuroreacttoourindicator.Ifo'smethodologyfordeterminingthebusiness climateindicatorhasbeenexportedtomorethan?ftycountries, mostrecently toTurkeyandChina.TheIfopeoplewereproudtohavebeenaskedtohelpset up polling systems in these countries. It is said that the Chinese government relies more on their "Ifo indicator" than on their o?cial accounting statistics.