History of Capitalism: From Mercantilism to Piketty's r>g

Capitalism Is Only 250 Years Old. Inequality Is Much Older.

Adam Smith published The Wealth of Nations on March 9, 1776 — the same year as the American Declaration of Independence and, notably, the same year James Watt's improved steam engine went into commercial production. The coincidence was not accidental: the theoretical framework Smith provided and the technological transformation Watt enabled were two components of the same civilizational rupture. In the century that followed, industrial capitalism produced the fastest sustained economic growth in human history and simultaneously created the most severe urban poverty and labor exploitation the developed world had seen in living memory. Understanding capitalism historically means holding both facts simultaneously.

Mercantilism: Pre-Capitalist Commercial Logic

Before capitalism's emergence, the dominant economic doctrine of European states from approximately 1500 to 1776 was mercantilism — the belief that national wealth consisted primarily of gold and silver, and that state policy should maximize exports while minimizing imports to accumulate bullion. Mercantilist states chartered monopoly trading companies — the Dutch East India Company (VOC, 1602), the British East India Company (1600), the French Compagnie des Indes — as instruments of state commercial power.

The VOC was history's first publicly traded joint-stock company, issuing shares on the Amsterdam Exchange from 1602. At its peak valuation (adjusted) it exceeded $8 trillion — more than Apple, Microsoft, Amazon, Google, and all other current large-cap companies combined. This was proto-capitalism: private profit, state charter, unlimited liability toward colonized populations, but not yet systematic market allocation or free trade.

Adam Smith and the Theory of Market Capitalism

Smith's critique of mercantilism was systematic. He argued that national wealth consisted not of gold but of the productive capacity of the population — the "annual labour of every nation." The division of labor, illustrated by his famous pin factory where 10 men performing specialized tasks produce 48,000 pins per day versus each man making at most 20 alone, was the mechanism of productivity growth. Markets, coordinated by what Smith called the "invisible hand," would allocate resources more efficiently than state direction — not because participants were moral, but because the pursuit of self-interest aggregated into socially beneficial outcomes under competitive conditions.

Marx's Critique: The Structural Tensions

Karl Marx, writing Das Kapital (Volume I, 1867) at the height of British industrial capitalism, accepted Smith's analysis of market mechanics while arguing that capitalism contained irresolvable structural contradictions. His labor theory of value held that profit (surplus value) derived from the difference between the value workers produce and the wages they receive — a systematic extraction that would, he argued, produce both capital accumulation among owners and immiseration among workers. Marx correctly identified the tendency toward monopolization (capital concentration), the centrality of credit crises, and the political instability generated by inequality — insights that mainstream economics spent decades dismissing and then gradually reintegrating.

• The Communist Manifesto (1848, Marx and Engels) was written during a period of revolutionary upheaval across Europe — 1848 saw revolutions in France, Germany, Austria-Hungary, and Italy.
• Marx predicted capitalism's collapse through working-class revolution. This prediction was falsified in the advanced capitalist countries, where rising real wages, welfare states, and political reform absorbed revolutionary pressure.
• Where Marxist revolutions did occur (Russia 1917, China 1949), they arose in agrarian societies, not the industrialized proletarian economies Marx anticipated.

Keynesian Welfare State: The Great Compression

The Great Depression (1929–1939) discredited laissez-faire orthodoxy. Unemployment in the United States reached 25% by 1933; industrial output collapsed by a third. John Maynard Keynes's General Theory of Employment, Interest and Money (1936) provided the theoretical foundation for activist government demand management: when private spending collapsed, government deficit spending should fill the gap, preventing the deflationary spirals that turned recessions into depressions.

The postwar Keynesian settlement (1945–1973) produced what economists have called "the Great Compression" — a period of historically unusual income equality in the United States. The top 1%'s income share fell from approximately 20% in 1929 to around 10% by 1950 and remained there through the 1970s. Union membership peaked at 35% of the U.S. workforce in 1954. Progressive marginal tax rates reached 91% on incomes above $400,000 (equivalent) during the Eisenhower administration. This was capitalism constrained — highly productive, broadly distributed, and politically stable.

Neoliberal Turn: Friedman and Thatcher

The stagflation of the 1970s — simultaneous high inflation and unemployment, which Keynesian models had not predicted — opened the door to a monetarist counter-revolution. Milton Friedman's arguments for market deregulation, floating exchange rates, and the primacy of money supply control provided the intellectual framework. Friedman's 1970 New York Times Magazine essay asserting that "the social responsibility of business is to increase its profits" became the founding document of shareholder primacy doctrine. Margaret Thatcher (UK, 1979) and Ronald Reagan (US, 1981) translated these ideas into policy: tax cuts for high earners, union-busting, deregulation of financial markets, and privatization of state enterprises.

The consequences were mixed. Inflation was defeated. Productivity growth resumed. But inequality reversed sharply: the U.S. top 1%'s income share climbed from ~10% in 1980 to ~21% by 2019 (World Inequality Database). The 2008 financial crisis — precipitated by deregulated financial markets and unprecedented private debt — forced a partial reckoning with neoliberal assumptions that continues to define economic policy debates.

Piketty's r > g: The Inequality Mechanism

Thomas Piketty's Capital in the Twenty-First Century (2013, English translation 2014) synthesized 200 years of wealth and income data across 20+ countries to argue a single structural proposition: when the return on capital (r) exceeds economic growth (g), wealth concentrations from the past systematically grow faster than the economy as a whole, producing rising inequality over time. r has historically averaged 4%–5%; g averages 1%–2% in mature economies. The postwar compression was, in Piketty's reading, an anomaly driven by war destruction of capital and exceptional postwar growth — not an organic property of capitalism.

• Global billionaire wealth doubled in the two years of COVID-19 pandemic (Forbes data: $8 trillion to $13.8 trillion, 2020–2021).
• The United States has a higher Gini coefficient (income inequality measure) than any other G7 economy at approximately 0.41–0.49 depending on the measure used.
• Piketty's proposed remedy — a global wealth tax — has been adopted partially: the OECD's global minimum corporate tax of 15%, effective 2024 for large multinationals, represents the first coordinated international attempt to limit capital's ability to escape national taxation through jurisdictional arbitrage.