I currently hold Vanguard VWO in my RSP. Being a believer in the "New Normal" I believe emerging markets will be a good place for up to a 25% allocation for the equity portion of a long-term portfolio. So, I'm considering adding an EM etf to my TFSA. Is there any reason to aviod this? In addition to the Vanguard etf which is on the U.S. exchange I'm looking at the Canadian EM etf options. The Claymore funds have been around longer and therfore have the highest lquidity but the MERS are slightly higher than the others. Some have hedging, some not. Any thoughts are welcome!