An article in The Atlantic entitled "The 11 Ways That Consumers Are Hopeless at Math" reveals how businesses use fact and psychology to persuade shoppers into making purchases they normally wouldn't make. They're tricks some Canadians face at the mall, the car dealership and even the grocery store. But what about the housing market? Are Canadian house hunters having the wool pulled over their eyes? Whether you're buying, selling or just window shopping, here are three things to consider.