Adam Smith, Book 1, Ch. 11, Rent of Land

TL;DR

Classical and neoclassical theories differ because the classical approach treats rent as land yield minus the support required for labor and capital, while the neoclassical approach sets rent by land’s marginal value. Using plots yielding 10, 7, and 3, the discussion calculates classical rents of 8, 5, and 1 but a neoclassical rent of 3. Read on to see which assumptions produce these contrasting results.

Transcript

now let's consider adam smith in book 1 chapter 11 of the wealth of nations on the rent of land this chapter is entitled of the rent of land there's a lot of detail in this chapter about particular instances of land rents but i'd like to hone in on one one very particular question and that is the analytic distinction between neoclassical and classi... Read More

Key Insights

• Adam Smith's classical theory of land rent considers the difference between land yield and required support for labor and capital.
• The neoclassical approach to land rent focuses on the marginal value of land, setting rent based on the least productive land in use.
• Classical economics views landowners as having monopoly power, influencing rent through bargaining advantages over labor and capital.
• Neoclassical models assume land competes like other production factors, with rents determined by market competition rather than bargaining power.
• Smith suggests that positive land rent results from the economics of food production, where land yields more than required to support labor.
• The classical model assumes that land is scarce and doesn't compete directly, unlike the neoclassical view of land as part of a competitive market.
• Neoclassical economics considers land, labor, and capital as symmetric, whereas classical models differentiate land due to its scarcity and monopoly aspects.
• Smith's chapter also discusses the implications of positive land rent on agricultural and non-agricultural land, setting a baseline for general land rents.

Questions & Answers

Q: What is the difference between classical and neoclassical theories of land rent?

The classical approach defines rent as each plot’s yield minus what is required to support labor and provide a fair return to capital. The neoclassical approach instead uses the value of land at the margin, where supply and demand come together, to set market rent.

Q: How does the three-plot example calculate rent under each theory?

The example uses three plots yielding 10, 7, and 3. With required support for labor and capital set at 2, classical rents are 8, 5, and 1, whereas the neoclassical rent is set by the marginal plot’s value of 3.

Q: Why does the classical model produce differential land rents?

Each plot yields a different amount, but the assumed payment needed to support labor and capital is 2 for every plot. Rent is therefore the remainder on each plot, producing different rents of 8, 5, and 1.

Q: What assumptions can produce classical results about land rent?

The explanation treats the landowner as having monopoly power in bargaining because land is truly scarce. It also assumes that plots do not compete much with one another and that labor is in quite elastic supply, though the speaker notes that Smith and other classical economists did not explicitly lay out these assumptions.

Q: How does bargaining power affect rent in the classical model?

Land is portrayed as locked in a bargaining struggle with labor and capital, with the landowner likely to prevail. If a landowner declines to work with certain laborers, the model assumes other laborers are available to work the land.

Q: How does the neoclassical model describe competition among plots of land?

Different plots coexist along a spectrum of marginal uses with declining value, and entrepreneurs choose among them. Land participates in a generalized market and competes to be hired just like labor and capital.

Q: Does bargaining power determine land rent in the neoclassical model?

Bargaining power does not have to be equal, but it is not treated as the main determinant of most land rent. Instead, rent typically reflects marginal value and competition within the generalized market for land.

Q: Why does Adam Smith argue that land rent is generally positive?

Smith argues that a piece of land can produce more food than is required to support the labor needed to produce that food. He further argues that generally positive agricultural rent will, in most cases, establish positive rent for land even when it is not used for agriculture.

Summary & Key Takeaways

• Adam Smith's analysis of land rent in classical economics emphasizes the difference between land yield and what is needed to support labor and capital. This contrasts with the neoclassical view, which bases rent on the marginal productivity of land, focusing on market dynamics and competition among land parcels.

• Classical economics assumes that landowners have significant bargaining power due to land scarcity, influencing rent outcomes. In contrast, neoclassical models view land as part of a competitive market, where rent is determined by the land's marginal value, similar to other production factors like labor and capital.

• Smith argues that positive land rent arises from the economics of food production, where land can produce more than is required to sustain labor. This principle extends to both agricultural and non-agricultural land, establishing a generally positive rent across different land uses, regardless of direct agricultural involvement.