December 16, 2022
Before 1776, nobody talked about economic growth. People talked about wealth, about trade, about how nations prosper or decline. But the idea that an economy should grow continuously and indefinitely, that this was its natural and desirable state, that idea didn’t exist yet. It had to be built.
Adam Smith built the first version. In The Wealth of Nations, he never defines economic growth explicitly, but the whole architecture of the book points toward it: the division of labor increases productivity, capital accumulation channels that productivity into output, and a competitive market, guided by what he called an invisible hand, ensures that individual self-interest serves the common good. The economy, in Smith’s telling, is a machine. Leave it alone and it grows. Interfere and you break it.
The invisible hand did more than describe a mechanism. It made a moral claim: that selfishness, properly channeled, produces collective benefit. Governments should stay out of the way, because the competitive system, left to itself, will generate more prosperity than any deliberate plan. This is a powerful idea. It is also an idea that conveniently removes from the picture anyone whose self-interest lacks the capital to participate.
The machine metaphor makes growth feel inevitable, a property of the system itself rather than a choice about what the system should do. The economists who followed Smith did not question that premise so much as argue about its mechanics.
Malthus saw a limit. His 1798 Principle of Population argued that natural resources were scarce and population growth would outpace them, ending in famine and conflict. Where Smith saw an engine that would run as long as nobody touched it, Malthus saw one that could overheat. His contribution was not the pessimism. It was the recognition that growth needed balance, that the relationship between industry, agriculture, and public spending had to be calibrated if growth was going to be sustained at all. The question was no longer whether the economy could grow, but whether it could grow without consuming itself.
Ricardo picked up where Malthus left off and turned the question structural. His 1817 Principles of Political Economy synthesized an account of the forces underneath growth: how wages, profits, and rents interact, how technology in the form of machinery and mechanization shapes all three. Ricardo showed that growth does not distribute evenly. Wages tend toward subsistence. Rents capture the surplus. Profits fluctuate with the cost of labor and land. The economy grows, in Ricardo’s account, but who benefits from that growth is determined by the structure of production itself, not by any invisible hand ensuring fairness.
By 1817, the conversation had shifted from whether economies grow to how the mechanics of growth distribute what it produces. The answer was not reassuring.
Mill took the argument somewhere none of his predecessors had been willing to go. Writing in 1848, he was the first major economist to propose that growth should end, that a “stationary state” would be more conducive to human flourishing than the relentless competition for more. Mill imagined a society that had decided it was wealthy enough, one that could turn its energy from accumulation to culture, education, and the improvement of the human condition. In his vision, older, more developed nations would naturally reach this point, not as failure but as maturity. This was not a counsel of despair. It was the opposite: the argument that a mature society might choose to stop growing because it had found something better to do. Mill was largely alone in this position. It would take more than a century for anyone to seriously pick up the thread.
Marx did not share Mill’s optimism about capitalism’s capacity for graceful exit. His diagnosis, developed across the three volumes of Capital published between 1867 and 1883, was that the system’s internal contradictions would destroy it: overproduction, the concentration of capital in fewer hands, a falling rate of profit as mechanization replaced the labor that generates value. The classical economists ended with Marx. He did not propose a gentler version of capitalism. He predicted its collapse under the weight of recession, unemployment, and social tensions.
But capitalism didn’t die on schedule.
Alfred Marshall’s 1920 Principles of Economics laid the foundation for neoclassical economics by connecting growth to economies of scale, to the internal resources and organization of individual firms, and to their ability to reach markets. Where Smith had described the economy as a machine, Marshall brought that machine down to the level of the firm. Growth happens when businesses get better at producing and selling. The question shifted again, from the structure of the economy to the behavior of its participants, and the idea that growth is natural became even harder to see as an assumption rather than a fact.
Then came the test. The first half of the twentieth century delivered exactly the crises Marx had predicted: recession, mass unemployment, political instability. Capitalism survived, but the idea that markets would self-correct did not. John Maynard Keynes proposed something that would have been unthinkable in Smith’s time: a model in which the economy cannot find its own equilibrium, in which fiscal and monetary policy are necessary to prevent collapse. Growth, in Keynes’s framework, needed to be managed. This was a profound concession. The machine metaphor survived, but it now required an operator.
Joseph Schumpeter offered a different answer entirely. His 1911 Theory of Economic Development (revised and translated in 1934) argued that growth comes not from equilibrium but from its disruption. The entrepreneur, in Schumpeter’s account, is a disruptive force who creates “new combinations” that break the circular flow of an economy at rest. Without disruption, no growth. Without growth, stagnation.
“Spontaneous and discontinuous change in the channels of flow, disturbance of equilibrium which forever alters and displaces the equilibrium state previously existing.”
Joseph Schumpeter, Theory of Economic Development, 1934
Schumpeter gave us creative destruction, the idea that capitalism grows precisely by destroying and reinventing itself. He also gave us the entrepreneur as protagonist, driven by profit, by a desire to conquer, and by the possession of skills the market hadn’t seen before. This is a seductive narrative. It is also, if you think about it, a description of a system that cannot rest. Growth is not just the goal. It is the condition for survival.
Schumpeter made growth exciting. He also, like Marx before him, suspected capitalism couldn’t survive its own logic.
Two and a half centuries of economic thought, and the pattern is consistent: every major thinker treats growth as the central question. They disagree about how it works, who benefits, and whether the system can sustain itself. But the assumption that the economy should grow, that growth is the goal, goes unexamined. It is the water the fish swim in.
The construction happened in plain sight. Smith provided the metaphor (the machine), Malthus added the warning (the limit), Ricardo mapped the distribution (the structure), Mill proposed an exit (the stationary state), Marx predicted the crash, and Schumpeter reframed the crash as a feature. Each thinker refined the model. None asked whether a different model was needed.
That assumption has a cost.