von Thünen's rent is a way of looking at economics and geography. It's named after a German economist named Johann von Thünen who published a book in 1826 about land uses. He proposed that the amount of rent (the money a farmer pays to use a certain piece of land) would have an effect on where people chose to farm. He said that land closer to a city would have higher rent than land further away. This is because people in the city need food and are willing to pay more for it. Farms closer to the city can grow more food and get the higher prices so the rent is higher. Farms further away will have lower rent because there is less demand for their products.