The Fourteenth-Century Economist Who Predicted the Modern World
Long before Adam Smith analysed the wealth of nations, a North African scholar was charting the laws of markets, labour, and the rise and fall of empires.
If you open almost any conventional textbook on the history of economic thought, the story begins in the eighteenth century. It starts in Scotland, where Adam Smith observed a pin factory and synthesised the foundational ideas of modern capitalism. We are taught that before 1776, the world understood wealth merely as a hoard of gold, and that economics as a rigorous science simply did not exist.
Yet, exactly four centuries before Smith published The Wealth of Nations, a brilliant Arab polymath sat in a fortress in modern-day Algeria, writing a text that anticipated the core tenets of modern economic theory.
His name was Ibn Khaldun. In his monumental 1377 work, the Muqaddimah (the “Introduction” to his history of the world), he laid down principles of division of labour, the mechanics of supply and demand, the labour theory of value, and even the foundation of supply-side economics.
It is time to re-evaluate the origins of economic science.
The Specialisation of Labour: Before the Pin Factory
One of Adam Smith’s most famous insights is the division of labour. He illustrated how ten men, each specialising in a distinct step of pin manufacturing, could produce tens of thousands of pins a day, whereas a single untrained man could barely make one.
Now consider this passage written by Ibn Khaldun in the fourteenth century:
“The power of the individual human being is not sufficient for him to obtain the food he needs, and does not provide him with as much as he requires to live. Even if we assume an absolute minimum of food... that amount of food could be obtained only after much preparation... Thus, he cannot do without a combination of many powers from among his fellow beings, if he is to obtain food for himself and for them. Through cooperation, the needs of a number of persons, many times greater than their own number, can be satisfied”.
Ibn Khaldun recognised that human cooperation multiplied productivity. He argued that this surplus production, achieved through collective effort and specialisation, is what allows villages to grow into cities, and cities to blossom into great civilisations. Wealth, in his eyes, was not a fixed chest of precious metals. It was the product of human organisation and labour.
The Fourteenth-Century Laffer Curve
In the late twentieth century, American economist Arthur Laffer became famous for a simple curve demonstrating that raising tax rates past a certain point actually decreases total tax revenue. The logic was clear: if you tax people too heavily, you destroy their incentive to work, invest, and produce.
Ronald Reagan praised the idea, and it became a cornerstone of modern conservative economics. However, Arthur Laffer himself freely admitted he did not invent the concept. He pointed directly to Ibn Khaldun.
In the Muqaddimah, Ibn Khaldun outlined the cyclical relationship between the state and the economy:
The Early Empire: At the beginning of a dynasty, the government keeps taxes low and predictable. This encourages business, markets flourish, and because production is high, the total tax revenue collected by the state is immense.
The Mature Empire: As the ruling class grows accustomed to luxury and government expenditure increases, the state requires more money. It raises tax rates, introduces tariffs, and creates monopolies.
The Decline: High taxes disincentivise producers. Farmers abandon fields, merchants stop trading, and the overall tax base shrinks. Paradoxically, the state increases rates even further to compensate, accelerating the economic collapse.
As Ibn Khaldun succinctly summarised: “At the beginning of the dynasty, taxation yields a large revenue from small assessments. At the end of the dynasty, taxation yields a small revenue from large assessments”.
Value, Markets, and the Role of Government
Ibn Khaldun’s economic philosophy was remarkably proto-capitalist, yet balanced with a keen sociological eye. He understood that prices are governed by the laws of supply and demand. He noted that when goods are scarce, they become expensive, and when they are abundant, they become cheap. He even advised merchants against hoarding goods to manipulate prices, warning that it ruined the natural flow of the marketplace.
Furthermore, he anticipated the Labour Theory of Value, which would later be utilised by thinkers ranging from David Ricardo to Karl Marx. Ibn Khaldun stated that profit is nothing more than the value realised from human labour. Everything earned by a person, he argued, is the result of their work, combined with the tools and materials they use.
Crucially, he was deeply suspicious of state intervention in the marketplace. He believed that when governments engage in commerce or attempt to set prices, they inevitably distort the market, crowd out private enterprise, and breed corruption. The proper role of the state, in his view, was to protect property rights, maintain order, and ensure the rule of law so that commerce could naturally thrive.
Why Ibn Khaldun Matters Today
Why does it matter that a medieval Islamic scholar thought of these ideas first? It matters because the history of ideas is too often told through a strictly Eurocentric lens.
When we pretend that economic insight spontaneously generated in Western Europe during the Enlightenment, we miss out on the rich, global dialogue that built the modern world. Ibn Khaldun did not write his theories in a vacuum. He lived through the plague, witnessed the collapse of empires across North Africa and Andalusia, and served as a judge, diplomat, and advisor to sultans. His economics grew out of real-world observation of human behaviour.
By reading Ibn Khaldun, we do not just find a precursor to Adam Smith. We find a thinker who seamlessly integrated economics with sociology, history, and politics, offering a holistic view of human society that modern economics, with its obsession with abstract mathematical models, often lacks.
Centuries before the Scottish Enlightenment, the bedrock of modern economics had already been poured in the capital cities of North Africa. It is time we gave its architect his due.