I know of a woman — I have never had the pleasure of making her acquaintance, because she lives in a lunatic asylum, which does not happen to be on my visiting list. This woman has been mentally incompetent from birth. She is well taken care of, because her father left her when he died the income of a large farm on the outskirts of a city. The city has since grown and the land is now worth, at conservative estimate, about twenty million dollars. It is covered with office buildings, and the greater part of the income, which cannot be spent by the woman, is piling up at compound interest. The woman enjoys good health, so she may be worth a hundred million dollars before she dies.

I choose this case because it is one about which there can be no disputing; this woman has never been able to do anything to earn that twenty million dollars. And if a visitor from Mars should come down to study the situation, which would he think was most insane, the unfortunate woman, or the society which compels thousands of people to wear themselves to death in order to pay her the income of twenty million dollars?

The fact that this woman is insane makes it easy to see that she is not entitled to the "unearned increment" of the land she owns. But how about all the other people who have bought up and are holding for speculation the most desirable land? The value of this land increases, not because of anything these owners do — not because of any useful service they render to the community — but purely because the community as a whole is crowding into that neighborhood and must have use of the land.

The speculator who bought this land thinks that he deserves the increase, because he guessed the fact that the city was going to grow that way. But it seems clear enough that his skill in guessing which way the community was going to grow, however useful that skill may be to himself, is not in any way useful to the community. The man may have planted trees, or built roads, and put in sidewalks and sewers; all that is useful work, and for that he should be paid. But should he be paid for guessing what the rest of us were going to need?

Before you answer, consider the consequences of this guessing game. The consequences of land speculation are tenantry and debt on the farms, and slums and luxury in the cities. A great part of the necessary land is held out of use, and so the value of all land continually increases, until the poor man can no longer own a home. The value of farm land also increases; so year by year more independent farmers are dispossessed, because they cannot pay interest on their mortgages. So the land becomes a place of serfdom, that land described by the poet, "where wealth accumulates and men decay." The great cities fill up with festering slums, and a small class of idle parasites are provided with enormous fortunes, which they do not have to earn, and which they cannot intelligently spend.

This condition wrecked every empire in the history of mankind, and it is wrecking modern civilization. One of the first to perceive this was Henry George, and he worked out the program known as the Single Tax. Let society as a whole take the full rental value of land, so that no one would any longer be able to hold land out of use. So the value of land would decrease, and everyone could have land, and the community would have a great income to be spent for social ends. ...

In Philadelphia, as in all our great cities, are enormously wealthy families, living on hereditary incomes derived from crowded slums. Here and there among these rich men is one who realizes that he has not earned what he is consuming, and that it has not brought him happiness, and is bringing still less to his children. Such men are casting about for ways to invest their money without breeding idleness and parasitism. Some of them might be grateful to learn about this enclave plan, and to visit the lovely village of Arden, and see what its people are doing to make possible a peaceful and joyous life, even in this land of bootleggers and jazz orchestras. read the whole article

 To stimulate building is also to uphold and fortify the tax base, even though you do not tax the new buildings directly. Some people fault the "depressing" canyons of Manhattan, between the skyscrapers. In my observation, it is not the canyons that depress Manhattan. When the GM building went up, Fortune Magazine reported it doubled the rents of stores across the deep canyon so formed. Its spillover effects were highly positive. What really depresses Manhattan are rather the centenarian firetraps and the activities they attract. They tend to downvalue other lands nearby, eroding the tax base.

 Consider the effect of floorspace rentals on ground rents and land values. Doubling floorspace rentals will more than double land values, through a kind of leverage effect. That is because all cash flows above a constant amount required for the building will inure as ground rents. The higgling and arbitrage of the market will see to that. Once that constant is met, everything above it goes to landownership as such, raising land prices which are the land tax base.

 When you observe cities much, the positive neighborhood effects of replacing old buildings with new are irresistible and contagious, raising land prices all around. The converse is also true: the negative neighborhood effects of letting old junkers stand without replacement are depressive. Thus, when you take the tax off new buildings, and put it on the land under old tumbledowns, you kick off a general process of revitalization that turns gloom into hope into optimism: optimism that boosts land prices and the land tax base.

 There are three kinds of slums.

• Type I slums develop on land in the van of downtown expansion, on land held for a future higher use. The speculators are milking the old structures for any residual value. They don't much mind when the tenants leave, and spare them the trouble of an eviction when they want to sell or rebuild. That's what they're in it for: the current use is incidental.
• Type III slums (listed here out of numerical order) develop on land that is no good, and may never be, like floodplains and earthquake faults. They also develop around abbatoirs, dumps, stockyards, etc., although these are subject to change. In either case, people are driven there by the inadequate development of good land.
• Type II slums, our focus here, are the most extensive. They occur on good or superior residential land originally developed over fifty or a hundred years ago. It may once have housed the upper crust, but as the buildings aged without replacement they "filtered down," and down, and down, until their occupants began radiating negative neighborhood effects. There comes a tipping point where the neighborhood self- destructs cumulatively, because no one wants to build new in a decayed, menacing neighborhood. The renewal value of land is lost, the tax base is lost, nothing remains but social and public costs: a municipal disaster area. The city that fails to renew itself on time is steering itself to this fate, like Camden, the Bronx, East St. Louis, Benton Harbor, MI, and Detroit.

 That's the bad news. How do you turn it around? When you drop buildings from the property tax base, you change the arithmetic of incentives, as we have discussed. Parachuting into the middle of a slum is still hopeless, as before. Change will come first to the fringes of the Type II slum, where it merges into healthy neighborhoods. New development likes to anchor onto healthy neighborhoods. Richard Hurd, father of urban studies in America, taught us in 1902 that land values are marked by continuity in space. It's still so. Fashions and technology change, but principles last. Hope survives at the edge of the slum; land there retains some renewal value. There is where you'll first see change, because there is where the forces are evenly balanced. Tip the forces for renewal, and there is where it begins.

 Once it begins, it proceeds incrementally through the Type II slum. When it's through, your oldest neighborhood has become your newest, the cutting edge of progress, the showplace of the town. That is how it has got to work; that is how it will work when you exempt buildings and tax only land. When it is through, you have a high tax base where now you have nothing but fire and police calls.  ...   Read the whole article