The Order

Take away the difference in fertility and the rent does not disappear. Two acres can grow the same crop with the same labor, receive the same rain, and face the same market price, while one commands a larger payment merely because the market is closer. The saving lies in the journey. Where Ricardo's rent measured the advantage of the more fertile field over the less fertile, Johann Heinrich von Thünen's measured the advantage of the near field over the far. His isolated state begins with a single town surrounded by a plain of uniform fertility, with no navigable river or canal to interrupt the symmetry and no other town offering a rival market. The countryside supplies the town; the town supplies manufactured goods to the countryside. Distance remains as the circumstance by which otherwise equal places differ. From this deliberate simplicity comes an order: different uses gather at different distances, and the value of a place changes with the expense of carrying its product to the people who want it. The soil is the same. Its situation is not.¹

The rent begins as a residual after the journey has been paid for. Suppose an acre's crop sells in the town for 1,000, and cultivation costs 600, including the remuneration needed to retain the farmer's labor and capital. If carriage costs 100 from the nearer acre, 300 remains available for the use of the land. If carriage costs 300 from the farther acre, only 100 remains. Under competitive bidding for comparable leases, the difference in transport expense can pass to the owner of the better situation. The farmer who offers less for the near acre leaves another farmer room to offer more while still covering the same ordinary costs. The larger rent therefore need not be the cause of a larger delivered price. Given the town price in this comparison, it is the saving from a favorable position that leaves room for the larger bid. This repeats Ricardo's inversion along a road: the favorable acre earns more because its product can reach the common market at lower cost. The landlord receives the advantage of the shorter journey, even when the landlord does none of the carrying.²

Different crops place different values on the same saved mile, and their rivalry draws the boundaries between uses. Imagine two possible annual bids per acre at distance d: crop A can offer 400 − 20d, while crop B can offer 240 − 4d. A has more to offer at the town but loses that advantage more quickly as distance increases. At ten units of distance both can offer 200. Inside that boundary, A's bid is higher; beyond it, B's is higher. With many competing cultivators able to undertake either activity, the land can be assigned to the use that supports the greater bid at each location. If land outside cultivation earns nothing and these are the only available crops, B reaches that outside option at distance sixty, where its bid falls to zero. The example is a simplified bid-rent construction, with prices and costs held fixed. It shows why the crop that pays most near the center need not occupy the entire plain: what matters for the next acre is the bid at that acre, after the cost of reaching the market has been deducted.³

The concentric rings are the map made by this comparison when equal distances have equal transport costs in every direction. Bulky goods that are expensive to carry relative to their value, and perishable goods that must arrive quickly, have a strong reason to remain near the town. Goods that travel cheaply can bear a longer journey. Von Thünen's opening places these differences at the center of the problem, asking how both the staple product and the farming system will change from district to district. The circles arise from the plain's symmetry; their economic content lies in the different losses that distance imposes. Add a river, a second market, unequal soil, or a cheaper route, and the arrangement can bend or divide. A map without neat rings consequently need not be a world without locational rent. The test is whether access affects the surplus a use can support and whether competing uses respond to that difference. The model makes a cause visible by holding other circumstances still, then leaves the actual landscape to tell us which additional circumstances must be restored.

A new route can therefore change the value of an acre without changing the acre's soil. At a given product price, a reduction in carriage expense leaves a larger residual for every affected use; a route that benefits one crop more than another can also shift the boundary between them. The improvement may reach land previously too distant to cultivate profitably. But the final division of its gains cannot be read from that single subtraction alone. More land in production can enlarge supply and change the price in town; changes in demand and settlement can alter which market is relevant; existing leases can delay the transfer of a saving into rent. A transport saving is real, while the share ultimately received by consumers, farmers, carriers, and landowners depends on these adjustments. The useful inference is conditional and precise. A location's advantage can be created outside the boundary of the parcel, and competition for that advantage can capitalize some of it into the payment for the parcel. An improvement in the connection can become an increase in the value of the connected place.⁴

The city brings this source of value into its most concentrated form. Nearness to customers, a labor market, suppliers, and public services can make one site more useful than another, even when the sites contain no natural difference that explains the premium. Much of that advantage comes from the surrounding activity: the people who gather, the connections they use, and the other opportunities their presence creates. Marshall calls attention to this situation value while also identifying the cases in which an owner has deliberately helped create it. A developer may lay out roads or coordinate a district; landowners may finance a railway; a business may establish the employment around which a settlement grows. The investment and the surrounding social growth can contribute to the same rent payment. To identify the return to position, one must therefore separate the value of the site from the services of the buildings and improvements, and distinguish an increment produced by the owner's outlay from one arriving through the actions of others. The street address can carry both histories, though the lease records only one payment.⁵

The rent of nearness does two things that the volume must keep in view together. It helps order the uses of scarce places, and it transfers a payment to whoever controls access to them. Competitive bids can place a crop or a shop where the saving from that position supports its claim, while the distribution of the resulting income follows the ownership of the land. The usefulness of the allocation does not settle the entitlement to the payment, and a bidder's ability to pay does not encompass every social value of the place. These are further questions about institutions, alternatives, and the uses excluded from the bidding. Von Thünen's plain has already done its essential work: rent can arise from a relationship between a parcel and the rest of an economy, even when nature has made every parcel alike. The scarce thing is accessible position. The next plate takes the same structure beyond the map and gives it its more general name, asking of every payment how much was needed to retain the factor in its use and how much was an excess the scarcity allowed its holder to collect.