signs of trouble now emerging in economies in Eastern Europe and Asia yen rose against the dollar and euro

yen rose against the dollar and euro on Friday as more signs of weakness in the U.S. economy heightened fears that the ongoing credit crisis had pushed the global economy to the brink of recession. Though governments worldwide have started pouring cash into troubled banks, helping reduce the cost of interbank borrowing, investors remain worried about high cost to the economy from a credit crisis that has persisted for more than a year now.And with signs of trouble now emerging in economies in Eastern Europe and Asia, investors have reversed risky trades financed with low-yielding yen, helping lift the Japanese currency at the expense of its higher-yielding rivals.