The economist Keynes was among those who discovered that during periods of recession or so-called underconsumption crises, the state should invest publicly. This is to increase the number of jobs so that more people have money to consume. The increased consumption sets the wheels in motion again. To afford this, it is acceptable for the government to exceed its budget and borrow money. Public measures of this kind have often involved building roads. This time they could invest the money in building cheap, good housing and eliminate the housing crisis.
Left blog
It is not possible to save yourself from an underconsumption crisis.