About This Video
A 14-minute video from David Shapiro that asks what comes after the services economy. He starts from the textbook assumption that an economy needs human labor, walks through the standard three-sector model, explains why earlier proposals for a fourth and fifth sector fall short, and then defines what he calls the real fourth sector. The last minute and a half of the recording (from about 13:12) is unedited outtakes, not lesson content.
Summary
Shapiro says the textbook equation for economic output has two inputs, capital and labor, so with zero labor the economy produces nothing. He calls this an unquestioned assumption and argues it is about to break. His proposal is that the fourth sector is the automated sector: value created with negligible human input by AI, robots, and other advanced automation. He expects it to take value from the other three sectors and to make ownership, not work, the main driver of a person's place in the economy.
The Three Sectors
- Origin (01:04). A New Zealand economist, whose name the transcript renders as Alan Fisher, divided the economy into three sectors in 1935. A British economist named Colin Clark built on the model a few years later. It is now often called the Fisher-Clark model.
- Primary, or extraction (01:04). Taking value directly from nature: farming, fishing, mining, cutting timber.
- Secondary, or transformation (01:04). Turning raw materials into things people use, such as tools, houses, and cars.
- Tertiary, or services (01:04). One person providing value directly to another, such as a doctor, teacher, or barber. Shapiro notes the knowledge sector is part of services.
- Defined by value, not jobs (02:03). The sectors describe how value gets created. Jobs only came along with them, but Clark counted workers, so many people came to think of sectors as kinds of jobs.
The Economy as a Pie Chart
- Hunter-gatherers (03:00). Almost the whole pie is extraction, with a thin slice for tools and shelter and a sliver for the shaman, healer, elders, and chief.
- England in 1381 (03:00). Estimated at about 45% extraction, a little under 30% transformation, and about 26% services.
- Britain in 1851 (04:02). Extraction under 20%, transformation about 32%, services about 50%. Transformation employed almost half of British workers, yet services already produced the most value.
- United States today (04:02). Extraction about 1%, transformation under 20%, services about 80%. America grows more food than ever, but it takes a tiny share of the economy.
- Lesson (04:02). Sectors do not vanish. They shrink as a share of the whole.
Why Earlier Fourth and Fifth Sectors Fail
- The proposals (05:01). Starting in the 1950s, one version made trade and finance the fourth sector and health and education the fifth. The common textbook version makes knowledge work the fourth and top executives and officials the fifth.
- The category error (05:01). These ideas cut the services slice into smaller pieces by job type and rank. A banker, researcher, and CEO all still provide value to other people, which is services. This is why official statistics still use three sectors.
- Newer ideas (06:02). The attention, experience, and meaning economies, and a "relational sector" described by an economist at Google DeepMind, are real but remain part of services.
- The deeper mistake (06:02). Every proposal assumed human labor would always be part of the economy. Shapiro uses the word doxa for an assumption so basic nobody questions it.
The Real Fourth Sector
- Definition (08:04). Value created with negligible human input: the automated sector, meaning AI, robots, and other advanced automation.
- A way to see the progression (09:04). Primary is value generated by nature and picked up by humans. Secondary is value from basic technology operated by humans. Tertiary is value from human brains. The fourth is value from non-human workers.
- How it grows (09:04). On the pie chart it is a red slice that takes from the others. A robot harvesting wheat moves value from extraction, a machine baking bread moves it from transformation, and an AI answering a call moves it from services. AI-made music, movies, and games count too.
- Not entirely new (09:04). England already had thousands of windmills by 1086, but for most of history the red slice was too thin to see.
- Services remain (10:04). Services become the final human sector, where the value comes from a human doing the job. Shapiro expects it to last, naming priests, musicians, and actors.
What It Means for People
- GDP hides the shift (10:04). GDP does not care whether a human or a machine created value.
- Labor share (11:05). He says the labor share of national income, the share of business output paid to workers, hit 52.8% in the second quarter of this year, the lowest since records began in 1947.
- The math (11:05). If the economy grows 10 times and the red slice is 90% of it, all human slices together equal about today's whole economy. New growth would go to whoever owns the automated sector.
- Two proposed metrics (11:05). In his book he proposes tracking how much household income comes from owning things versus wages and government checks, and how much comes from wealth the public owns together.
- His forecast (12:00). He thinks that within a few decades the red slice will be 75 to 90% of the economy, and over the long run perhaps near 99%. He calls that a fully automated economy.
- Ownership over work (12:00). For 10,000 years your place in the economy depended on your work. In the fourth sector it depends more on what you own.
Notes on the Recording
Shapiro mentions that he takes no corporate sponsorships and that his channel is demonetized and community supported (08:04). From about 13:12 the recording contains retakes and false starts rather than new material.
Key Terms
- Fisher-Clark model. The three-sector model of extraction, transformation, and services, defined by how value is created.
- Extraction (primary). Value taken directly from nature.
- Transformation (secondary). Raw materials turned into usable goods.
- Services (tertiary). One person providing value directly to another.
- Category error. Sorting by kind of job or rank instead of by how value is created.
- Doxa. An assumption so basic that nobody thinks to question it.
- Automated sector. The proposed fourth sector: value created with negligible human input.
- Labor share of national income. The share of business output paid to workers.
Key Takeaways
- The economic sectors describe how value is created, not what jobs people hold.
- Sectors rarely disappear. They shrink as a share of the whole.
- Earlier fourth and fifth sector proposals only split up services.
- The real fourth sector is value created with negligible human input.
- The automated sector grows by taking value from the other three.
- If output grows without labor, GDP alone no longer shows how people are doing, and ownership matters more.
Review Questions
- What are the two inputs in the textbook output equation, and what does Shapiro say happens when labor is zero?
- How does the Fisher-Clark model define a sector, and why does he say it was never about jobs?
- In 1851 Britain, why was transformation the biggest sector by jobs but services the biggest by value?
- Why does Shapiro call the knowledge-work and executive sector proposals a category error?
- How does he define the automated sector, and how does it grow on the pie chart?
- Why does he say services will remain as the final human sector?
- What does the labor share figure and his 10-times-growth example suggest about who benefits from the fourth sector?
- What two new metrics does he propose, and what do they measure?