I don't buy foreign bond funds because they introduce foreign exchange risk in what is supposed to be a «safe» holding. (canadiancapitalist.com)
When you invest abroad, foreign exchange risk becomes a factor, but when you don't, concentration risk becomes a factor. (moneysense.ca)
If you want to invest in something like emerging - economy stocks, limit your stake to a point where you can accept the associated foreign exchange risk. (tsinetwork.ca)