The (un)affordability of housing is of central concern to modern economics. Some recent research even argues that the majority of rising inequality over the past few decades is driven entirely by rising housing prices.

There are generally two main approaches towards reducing housing prices. The first is to increase housing supply, such as by repealing restrictive zoning laws, increasing competition and lowering prices. The second is to provide public housing, where the government owns and operates residential units, usually offering below-market-rate housing.