...its lowest levels against the dollar for almost a year, amid investor nervousness about emerging markets. By evening trade in Istanbul the currency had fallen beyond TL2.30 to the US dollar, more than 1 per cent down on the day and the weakest level since January, when the Turkish central bank moved to increase interest rates -- a dramatic shift in policy that at the time halted a precipitous drop in its value. ...Turkey is far from alone in being affected by strong US economic data that has heightened expectations of a US Federal Reserve interest rate rise and so...