I heard this phrase from a guest on Diane Rehm's NPR program today. And I think it is essentially a correct statement, and reflects our lack of understanding of the underlying dynamics.
We see that homeowners fare better than renters, and think that the answer to wealth distribution might be to make more renters into homeowners as a way to help them fare better.
But as a society, we could do a lot better if we all -- owners and tenants alike -- shared in the appreciation of land value, which currently accrues only to owners. If you've never thought about it before, this will sound very odd to you. But consider that
(1) houses, like cars and machinery, do not appreciate. They depreciate.
(2) land appreciates, for reasons which have nothing to do with the individual landholder. It appreciates because of public spending on infrastructure and services (schools, libraries, roads, highways, bridges, public health, emergency response at both the individual and community level, police, courts, jails, prisons, social workers, food stamps, It appreciates because of natural amenities like great views. It appreciates because of the presence of a healthy local and/or national economy. It appreciates because of increases in population, whether from increased fertility, decreased mortality because of better health care or fewer accidents or disabilities, immigration or migration. It appreciates because of advances in technology -- faster trains, air conditioning, elevators, earthmoving equipment advances, subways, bridge design.
Why on earth should landholders -- residential or, far more significantly, commercial -- be the beneficiaries of this appreciation? Why shouldn't we treat this value as our common treasure, since we're all equally responsible for it? Shouldn't we use this as our natural revenue base, to benefit all of us -- those who consider ourselves owners, those who are residential tenants, and those whose work is on land owned by others?
The way we do it now, tenants get nothing (and get to pay for some of that public spending, which raises next year's rent to their landlord), residential owners do pretty well, and commercial property owners, who own our best-served-by-valuable-infrastructure downtown sites (like that block in Manhattan) make out magnificently. That "magnificent" doesn't come out of thin air. It comes from the labor of all of us, often at wages well below what they should be.