NPR’s Scott Simon talks to Andy Yan at Simon Fraser College in Vancouver, Canada, about a new two-year ban prohibiting some foreigners from acquiring property in Canada. SCOTT SIMON, HOST: Purchasing a household in Canada just acquired harder for some foreigners. New regulation came into outcome that will prohibit some international traders from paying for household attributes in that region for the next two years. Andy Yan is director of the City Plan at Simon Fraser University in Vancouver. Thanks really a lot for becoming with us. ANDY YAN: You happen to be welcome, Scott. SIMON: Why has the federal government introduced this policy? YAN: Well, I think it commences…