Japan’s finance minister raised the prospect of a G7 joint statement on currencies to cool the yen’s rally as the dollar tumbled to a 14-year low against the yen on Friday, reports Reuters. In a sign Tokyo was stepping up its warnings of the chance of currency intervention, market sources said the government and Bank of Japan had been checking dollar/yen rates with commercial banks in the morning. The greenback slumped to a low of Y84.82 as investors shunned riskier assets due to concerns about Dubai’s debt problems, but it pared its losses after comments by finance minister Hirohisa Fujii.