# labour-as-measure-of-value

## Definition

The principle that labour is the only universal and accurate standard by which the value of all commodities can be compared at all times and places. Smith argues that labour alone, never varying in its own value, is the ultimate and real standard for estimating and comparing the value of commodities, as it reflects the actual human effort required to produce them. This concept forms the foundation of his labour theory of value.

## Source Chapter

Book 1, Chapter 5: "OF THE REAL AND NOMINAL PRICE OF COMMODITIES, OR OF THEIR PRICE IN LABOUR, AND THEIR PRICE IN MONEY."

## Context

Smith develops this concept as the central argument of Chapter 5, building from his definitions of real and nominal price. He systematically demonstrates why labour is superior to other commodities (like silver or corn) as a measure of value, arguing that equal quantities of labour always have equal value to the labourer regardless of time or place, while other commodities are subject to fluctuations in their own value.

## Economic Domain

General Theory

## Smith's Original Wording

"Labour therefore, is the real measure of the exchangeable value of all commodities... Labour alone, therefore, never varying in its own value, is alone the ultimate and real standard by which the value of all commodities can at all times and places be estimated and compared."

## Modern Interpretation

Labour as measure of value represents the idea that human effort is the fundamental source of economic value. While modern economics has moved away from pure labour theories of value, the concept remains influential in understanding the relationship between work, production, and value creation. It anticipates modern discussions about productivity, human capital, and the role of labour in determining economic worth.
