# Division of Labour

## Definition

The separation of a work process into a number of distinct tasks, each performed
by a specialised worker, resulting in a significant increase in the productive
powers of labour. Smith identifies it as the principal cause of improvement in
the productive capacity of any trade, art, or manufacture. The effect arises
from three circumstances: increased dexterity, saved time in transition between
tasks, and the invention of labour-saving machinery.

## Source Chapter

Book I, Chapter 1: "Of the Division of Labour"

## Context

The division of labour is the central argument of the chapter. Smith opens by
asserting that it is the greatest source of improvement in productive powers,
then illustrates it through the pin-factory example, explains its three causal
mechanisms, and concludes by showing how it generates universal opulence through
exchange.

## Economic Domain

Production

## Smith's Original Wording

"The greatest improvements in the productive powers of labour, and the greater
part of the skill, dexterity, and judgment, with which it is anywhere directed,
or applied, seem to have been the effects of the division of labour."

## Modern Interpretation

The division of labour remains a foundational concept in economics and
organisational theory. Modern extensions include specialisation theory,
comparative advantage (Ricardo), and the study of transaction costs that
determine the boundaries between internal division and market exchange (Coase).
