The Great Enrichment in One City
Session 4 · Thu Sep 10 · Tentative BMI field visit
This session is preliminarily scheduled at the Baltimore Museum of Industry. We will keep the assigned UOE Chapter 3 selections and use museum artifacts to identify the technologies, infrastructure, firms, labor, and public institutions behind Baltimore’s industrial transformation. Final travel details will be posted on Canvas.
New York City in the dark
On the evening of October 29, 2012, Hurricane Sandy made landfall on the New Jersey coast and swept through New York City. Winds hit 100 miles per hour. Lower Manhattan flooded. Subways filled with water. The power went out.
What happened next was revealing.
Without electricity, residents discovered they had lost not just lighting but everything that depended on it: elevators, heating and cooling, refrigerators, washing machines. Gas station pumps failed. Subway trains stopped. Charging your phone became a neighborhood event. People carried water up stairs.
The storm gave millions of New Yorkers a direct experience of something they had never experienced before: life without the infrastructure of modernity. It lasted a few days. For most of human history, those were just normal conditions.
Think about what the residents of New York in 1800 actually had: no electric light (candles and oil lamps), no indoor plumbing (wells and outhouses), no central heating (wood fires), no refrigeration (root cellars and iceboxes in winter), no telephone, no subway, no mass-produced clothing, no anesthesia. Life expectancy at birth in the United States was about 35 years, largely because infant and child mortality was enormous. The typical American spent most of their time and energy simply securing food, warmth, and water.
In two centuries (roughly the lifespan of the United States) all of that changed beyond recognition.
The question this session is about: how did this happen? Why 1800? Why Britain first? And what institutions made sustained growth possible?
The Hurricane Sandy hook is from UOE Chapter 3. It works particularly well because it makes the infrastructure of modernity viscerally real — students can imagine losing it. Session 1’s Crawford and Ordinary Abundance readings primed students to notice the “water” of industrial civilization; this session asks what economic institutions produced and sustain it.
Two centuries of transformation
The chart below shows what economic historians call the “hockey stick,” the most dramatic fact in the history of human welfare. For most of recorded history, GDP per capita changed slowly or not at all. Living standards in England in 1700 were not dramatically higher than in ancient Rome. Then, around 1800, something changed. Growth accelerated, compounded, and produced a world that would be unrecognizable to any previous generation.
Source: Maddison Project Database (2023) via Our World in Data. Figures are in 2011 international dollars, adjusted for purchasing power parity.
Walk students through reading this chart: what is on the axes, what does each line represent, when does the kink happen, and why does the shape matter? Key observations: (1) for most of history, all countries were roughly flat; (2) Britain kinks first, around 1750–1800; (3) other countries follow at different times; (4) China and India’s rise is very recent and extremely rapid; (5) the divergence between countries is enormous.
Ask: if a person from 1700 were transported to any point between 1000 and 1700, life would feel roughly familiar. If transported to today, it would be incomprehensible. What changed?
What capitalism is, and what it did
The transformation after 1800 was not an accident. It required specific institutional conditions: what economists call capitalism, the combination of private property, markets, wage labor, and the pursuit of profit through innovation.
UOE Chapter 3 makes three key arguments:
First, capitalism created incentives for innovation that had never existed before at scale. When entrepreneurs could capture the returns from new products and processes, they had powerful reasons to invest in finding them. This is the innovation rent mechanism: the temporary profits from being first to market with something new drive the search for new things.
Second, capitalism is a system of continuous creative destruction. Old products are displaced by better ones. Old firms fail and are replaced by more productive ones. The process is inherently disruptive: very good for aggregate output growth, but producing winners and losers at every stage.
Third, capitalist growth is historically contingent. It required specific institutional features that were not inevitable: secure property rights, rule of law, contract enforcement, access to credit. These conditions developed in particular places at particular times. Britain had them first; others followed; some are still developing them.
Capitalism transformed the world because it created for the first time in history a system in which the search for profit was channeled into the search for innovation.
Capitalism produced unprecedented prosperity, but it also produced inequality, environmental degradation, and significant human costs in the transition. Is it possible to get the benefits of capitalist growth without the harms? Or are the harms intrinsic to the system? Think about what trade-offs you would be willing to accept.
What does UOE Chapter 3 identify as the key institutional feature that drove growth after 1800?
- The discovery of new technologies through scientific research.
- Capitalism — private property, markets, and profit-driven innovation — created sustained incentives for growth.
- European colonialism transferred wealth that funded industrialization.
- Rapid population growth created demand that stimulated production.
Students often confuse the conditions for growth (institutions, property rights) with the mechanism of growth (innovation rents, creative destruction). Push them to be specific: what is it about private property and markets that produces innovation incentives that, say, a planned economy does not? This connects forward to the DARPA/science policy sessions.
From ordinary abundance to institutions
Session 1 asked you to notice the ordinary abundance around you: light, heat, clean water, food, transit, medicine, clothing, communication. Today we ask a different question: what economic system made that abundance possible at scale?
The answer is not simply “technology.” People invented useful things before 1800. The distinctive change was that capitalist institutions created a repeated, durable mechanism for turning invention into production, production into profit, profit into reinvestment, and reinvestment into further innovation.
That mechanism is powerful, but it is not automatic. It depends on rules and expectations that are easy to overlook: people must be able to own assets, form firms, make contracts, borrow, hire, sell, compete, and keep at least some of the gains from successful innovation. Without those institutions, an invention may remain a curiosity rather than becoming part of ordinary life.
The Great Enrichment was not just a burst of invention; it was the creation of institutions that made repeated innovation profitable, scalable, and self-reinforcing.
Choose one ordinary object or service from Session 1. What institutions had to exist for it to become cheap and widely available? Which institution seems most fragile or most taken for granted?
This is the bridge from the Session 1 perception exercise to UOE’s mechanism. Push students from “someone invented it” toward “what had to be true for the invention to spread, improve, and become affordable?”
Connections
Builds on: Session 2 and Session 3 established that the world has improved dramatically (Rosling) and that development means expanding freedom (Sen). Session 4 asks: where did this improvement come from? The answer — capitalism and its institutions — sets up a key tension: the same system that produced the Great Enrichment also produced inequality, environmental degradation, and the costs of creative destruction.
Sets up: Module 2 (Institutions & Innovation) asks what institutions produce and sustain progress: science, cities, the state. Once students can see ordinary abundance, the next question is what institutional arrangements keep producing, maintaining, and extending it.
Arc note: Session 4 is the pivot between the “what has happened” (Sessions 1–3) and the “how and why” (rest of the course). Students should leave with: (1) a clear picture of the hockey stick and what produced it; (2) a mechanism connecting capitalist institutions to innovation; (3) the first hint that progress is not automatic — which sets up the entire arc of the course from innovation through limits and risks.
Review cards
Reading guide
Required
Halliday, Simon D., and Luz Marina Arias. Understanding Our Economy, Chapter 3: “Our world transformed” (selections).
What to look for: The chapter moves from the hurricane Sandy hook to the hockey stick to the institutions of capitalism. Pay particular attention to Sections 3.2 (the hockey stick), 3.3 (institutions of capitalism), and 3.4 (capitalism and living standards). What is the mechanism that connects capitalist institutions to sustained growth?
Key argument: Capitalism produced unprecedented prosperity because it created for the first time a sustained incentive to innovate — but it also created inequality and environmental costs that are inseparable from the growth process.
Prepare to discuss: One institution that the chapter describes as central to capitalism (property rights, rule of law, markets, firms, etc.) — and one country or historical case where the absence of that institution seems to explain a failure to develop.
Recommended
Koyama, Mark, and Jared Rubin. How the World Became Rich, Chapter 1: “Why, When, and How Did the World Become Rich?” Cambridge: Cambridge University Press, 2022.
A rigorous survey of the leading economic history explanations for the Great Enrichment: geography, institutions, culture, colonialism, human capital, and more. Good background for students who want to go deeper on the “why Britain?” question. No technical prerequisites.
Schumpeter, Joseph A. Capitalism, Socialism and Democracy, Chapter 7: “The Process of Creative Destruction.” 1942.
The canonical statement of creative destruction: capitalism develops through new products, production methods, markets, and organizations that displace older ones. Use it to ask whether disruption is an unfortunate side effect of growth or part of its mechanism.
Teaching note: Session 1 made students notice the abundance around them. UOE Chapter 3 gives them the mechanism: how capitalist institutions, innovation rents, and creative destruction made that abundance historically possible.