There is no risk of this arbitrage. Range and once the two currencies yield, the yield of arbitrage mechanism will make two currencies are equal, that is, different interest rates in the currency of the country there is inherently a trend towards an equalization and trend, it is the interest rate index key aspects of the impact of foreign exchange to, also is our interpretation and grasp the key interest rate index. The fund said last year that it would grow 1.1% in 2017 and then increase its forecast to 2%. (1) spiritual gain -- spiritual satisfaction;