Suppose that in the coming years Australia doesn't invest as much in research and development as other countries. Which of the following is a likely long run consequence of a declining productivity rate, relative to other countries? Production costs will rise relative to other countries and the AUD will appreciate against other currencies. Exchange rates of AUD will be unaffected by changes in the relative rate of productivity growth in Australia. Production costs will fall relative to other countries and the AUD will appreciate against other currencies. Production costs will rise relative to other countries and the AUD will depreciate against other currencies. Production costs will fall relative to other countries and the AUD will depreciate against other currencies