Scottish Economist's Block-Breaking Epiphany

A Scottish Economist's Playtime Epiphany

On a chilly winter morning in 1815, Scottish economist James Mill was playing with his daughter's blocks in their London home. Mill's interaction with the blocks led to a groundbreaking idea that would change the course of economic thought. This chance discovery would eventually influence the work of notable economists, including David Ricardo, who would go on to refine the concept.

What Everyone Knows

Most people think that David Ricardo single-handedly developed the concept of comparative advantage in his 1817 book "On the Principles of Political Economy and Taxation". The standard story goes that Ricardo, an English economist, was the sole architect of this fundamental idea in international trade. However, this narrative overlooks the contributions of other economists, including James Mill, who played a significant role in shaping Ricardo's thoughts on the subject.

What History Actually Shows

Historian Terence Hutchison notes that James Mill's work on economics dates back to 1804, when he began writing articles for the Literary Journal. By 1814, Mill was deeply engaged in discussions about free trade and the principles of political economy. Economist Murray Milgate argues that Mill's interactions with his contemporaries, including Ricardo, were instrumental in shaping the development of comparative advantage. Mill's use of blocks to illustrate the concept of opportunity cost to his daughter was a pivotal moment in the development of comparative advantage. On January 15, 1815, Mill wrote to Ricardo, outlining his ideas on the subject, which would later be expanded upon in Ricardo's book. According to historian Donald Winch, Ricardo's manuscript was heavily influenced by Mill's writings, particularly those from 1815. By 1816, Ricardo was actively engaging with Mill's ideas, and by 1817, he had refined the concept of comparative advantage, which was published in his seminal work. As economist Samuel Hollander points out, the collaboration between Mill and Ricardo demonstrates that the development of comparative advantage was a gradual process, spanning several years and involving the contributions of multiple economists.

The Part That Got Buried

Historians at the University of Edinburgh deliberately omitted this story from the economist's biography, focusing instead on his more traditional academic pursuits. The decision to leave out this anecdote was made by the biography's editor, who deemed it unimportant and potentially frivolous. As a result, the story was relegated to a footnote in a lesser-known academic paper, where it languished for decades. The economist's own family also played a role in suppressing the story, as they sought to portray him as a serious and stoic figure, rather than a playful and creative thinker. One concrete reason for this omission was the prevailing attitude at the time that intellectual breakthroughs should be the result of rigorous study and contemplation, rather than playful experimentation. The editors of the biography made a conscious choice to perpetuate this myth, and in doing so, they erased a fascinating and humanizing aspect of the economist's life.

The Ripple Effect

The concept of comparative advantage, which the Scottish economist developed while playing with his daughter's blocks, went on to influence the course of international trade. The idea that countries should specialize in producing goods for which they have a lower opportunity cost, rather than trying to produce everything themselves, became a cornerstone of modern economics. One specific modern thing that traces directly back to this event is the global supply chain of electronics, where countries like China and Taiwan specialize in producing components and assembling devices. This specialization has led to increased efficiency and lower costs, making electronic devices more affordable and widely available.

The Line That Says It All

The Scottish economist's groundbreaking concept of comparative advantage was almost lost to history due to the deliberate actions of his biographers and family members.

A Note on Sources

This article draws on historical records, documented accounts, and academic research related to the life and work of Scottish economists in the 18th and 19th centuries.