Unexpectedly, Canada's central bank announced interest-rate cut on January 21 for the first time since economic slump. It says this is an insurance policy against the potential economic loss caused by oil price drop. In the opinion of ANBOUND think tank scholars, the slow revival of world economy and low oil price will increase the possibility of interest rate cut of big economies. For now, India has already cut interest rate. The RBA (Reserve Bank of Australia) is also discussing it. The market is also in high expectation of another interest rate cut in China. Once multiple countries start cutting interest rates, it might influence Federal Reserve’s process of tightening currency policy.