Businesses buy and sell off each other and also create value. But sticking with the "if everyone did this" every one would run a one person business. Not efficient but would work. On the other hand if everyone is renting out houses, they can at most be renting out one (ignoring foe now second houses/holiday apts). Then everyone would be housed and paying each other in a circle. So, no, everyone doing what the post suggests can not work. All but the first house would be empty.