BRUSSELS — The European Union’s top economic policy chiefs, invoking new oversight tools, warned Germany, France and 14 other member countries on Wednesday to address problems with their economies. By virtue of their size in the European economy, Germany and France have a special responsibility to contribute to the recovery in the rest of the euro area,” said José Manuel Barroso, president of the European Commission. The verdicts form part of a series of policy recommendations in 11 areas, from employment to public finances. The goal is to screen all 28 member states for economic risks, known as macroeconomic imbalances, by issuing early warnings under rules that came into force in December 2011.Germany’s trade surplus and France’s public spending were singled out as problem areas. In theory, countries that do not meet their goals could be fined. In practice, the commission has already decided to shy away from full-blown confrontations with member states by making the exercise more of an advisory one.“This looks like a big procedure, but for no country is there any chance of any concrete enforcement action at present,” said Daniel Gros, the director of the Center for European Policy Studies, a research organization in Brussels. “In one way or another, the commission has put a majority of member countries into the review, and when you put everyone in the same boat you reduce the scope for identifying standout case. Over all, the European Union has shrunk its average budget deficit by around half since a peak of almost 7 percent of gross domestic product in 2009 and has “created room” for a reduced emphasis on austerity, according to a report issued by the commission.