Published by Mark Smith-HalvorsenThe US has been told that it should focus on its own issues before offering advice about how the ongoing economic turbulence in the eurozone can be resolved, a move that may affect business currency exchange rates.According to the Daily Telegraph's Ambrose Evans-Pritchard, Wolfgang Schauble, the German finance minister, has suggested that it would "make no sense" to add to the European Union's existing lending limit of €440 billion (£381.79 billion)."I don't understand how anyone in the European Commission can have such a stupid idea. The result would be to endanger the AAA sovereign debt ratings of other member states," he said.He added: "It's always much easier to give advice to others than to decide for yourself. I am well prepared to give advice to the US government."The newspaper noted that the comments could have a serious impact if the US chooses to stop providing the region's banks with boosts such as dollar swaps.Tim Geithner, the US treasury secretary, has recently been participating in talks with finance ministers from European nations about how the crisis can be resolved.George Papandreou, the Greek prime minister, suggested that the nation is finding some of the comments levelled against in "frustrating" and although he promised that it is on track to meet deficit reduction targets, such comments were unlikely to help.In recent days the European market has been boosted by the belief that a plan is being put together by the area's leaders to address the problems.Earlier this week, Kuniyuki Hirai, Bank of Tokyo-Mitsubishi UFJ's manager of the foreign-exchange trading department, told the Wall Street Journal that the more positive outlook is "all based on speculation".He cautioned that no firm decision has been made about how to tackle the problems and noted the euro has returned to a more "normal" level.For more information on foreign exchange treasury services and risk management, visit our Corporate FX site