Joe Studwell on Africa, Asia, and What Development Actually Requires
Joe Studwell — author of How Asia Works — joins Tyler Cowen on the publication of How Africa Works to argue that the constraint on African development was never mainly governance but population density, that the optimism now lives in the private sector and agriculture rather than the state, and that industrial policy remains the only reliable engine of economic convergence. Episode 270, recorded January 2026.
Key ideas
- Population density, not governance, was Africa’s binding constraint. Against fifty years of academic literature blaming civil strife and weak institutions, Studwell argues the continent’s master problem was thin population — in 1960 one-fifth of Asia’s density and one-seventh of East Asia’s — driven by a uniquely virulent disease burden. People are the key input in a poor country with no cash and no technology, and you cannot mobilise people who are not there.
- The optimistic story is private and agricultural, not governmental. Africa has posted the fastest agricultural GDP growth in the world since 2000 (~4.5%), led by farmers buying their own pumps and digging boreholes rather than by state megaprojects. That growth is spawning Africa’s first large cross-border agribusiness conglomerates — Tanzania’s Bakhresa now operates in nine or ten countries. Agriculture matters precisely because it needs little of the weak state.
- Africa has a manufacturing future, and robots will not foreclose it. Factory labour runs $60–65 a month in Ethiopia or Madagascar against roughly $600 in China. A garment robot costs $100,000+ paid upfront whether orders come or not, handles fabric poorly, and cannot flex when demand spikes — whereas you can hire another worker for $65 and lay them off if the order falls through. Collapsing solar, wind, and geothermal costs are dissolving the old energy constraint (Ethiopia already has cheap industrial power).
- Industrial policy works — and is the only proven route to convergence. Cheap money aimed at manufacturing, temporary protection, and export discipline raise the technological level of an economy; manufacturing is the one sector that delivers the convergence orthodox theory promises. It failed in India because Mahalanobis-era planners never imposed competition, and was applied patchily in Brazil — failures of execution, not of the tool. The catch: exiting industrial policy, and the trade surpluses it breeds (Japan, Germany, now China), proves extremely hard.
- Stable growth, not high growth, is what signals private investment. East Asia’s least-repeated lesson is that developmental states delivered steady 5–8% growth, letting the private sector plan and invest with confidence; growth that bounces around does not. On borders, Studwell expects continuity — the African Union is hardwired to resist any change, fearing that one redrawn line opens the door to continent-wide mayhem.
Content
Population density as the master variable
Studwell inverts the standard diagnosis of African underdevelopment. The literature has spent fifty years on governance, civil war, and ethnic fragmentation; he points instead to demography. In 1960 African population density was a fifth of Asia’s and a seventh of East Asia’s — a gap he attributes largely to a disease burden ‘absolutely unique in its virulence.’ The practical consequence is that historic World Bank and UN projects often failed not through corruption but because they ‘needed more labour and bigger markets than were there.’ Nigeria’s relative improvement over the past two decades and the entrepreneurial density of Lagos he reads as density beginning to pay off; Botswana, rich on three well-managed diamond mines employing only 10,000 people, he treats as an outlier that ‘doesn’t prove anything’ about what a people-dependent economy requires.
Why the optimism lives in agriculture and the private sector
Asked repeatedly by Cowen for a sub-Saharan state one could trust to ‘become the next Denmark,’ Studwell concedes the governance story remains weak but redirects attention to where the state is least involved. Agriculture has grown faster in Africa since 2000 than anywhere in the world, propelled by farmer-led irrigation — three or four million hectares added by individuals buying pumps — rather than by the state-led dam-and-canal projects that decayed in earlier decades. That growth has a manufacturing tail (processing) and is producing genuinely large private firms operating across borders, the diversified conglomerates he associates with Southeast Asia. The through-line: durable progress is coming ‘much more micro,’ from private actors, in spite of politics rather than because of it.
The manufacturing future and the limits of robots
Studwell holds that every developed country bar a few petro-states and financial centres passed through a manufacturing phase, and that Africa’s labour-cost advantage — a tenth of China’s at the bottom — opens the same door. He is unpersuaded that robotics and AI close it, on two grounds: cost (a six-figure upfront outlay regardless of demand) and flexibility (human-staffed factories scale up and down with orders in a way automated lines cannot). He cites Ocado’s collapsed share price and Kroger shutting five ‘blind warehouses’ as evidence that human labour’s flexibility still wins in volatile demand. South Africa’s deindustrialisation he blames on the ANC’s ‘hyper-liberal’ abandonment of the classic industrial policy that, before the end of apartheid, had produced respectable manufacturing.
Industrial policy: what it is, why it works, why exit is hard
Pressed on industrial policy’s mixed global record, Studwell defends the tool while conceding its misapplication. The package — cheap targeted money, temporary protection, rewards for exporters, and crucially competition — has ‘been refined well over a century’ and is the only mechanism that reliably raises an economy’s technological level. India failed because planners ‘thought it was much more organisational — you pick your winners and you don’t subject them to competition’; Brazil applied it patchily over 200 years of underperformance. The success cases (Japan, Germany, China) then generate a second-order problem the rest of the world must absorb: persistent trade surpluses and the political difficulty of ever winding the policy down.
Asia’s demographic reckoning and where to deploy capital
On Asia, Studwell is sanguine about Thailand (‘always functioned fine’ despite messy politics) and bleak-but-amused about depopulation: after 250 years of Malthusian anxiety, ‘depopulation is way more serious than population growth ever was.’ Korea and Japan suffer more than China because they will not accept immigrants. On allocation, he would weight early entry toward the most populous markets — Nigeria, Ethiopia — and judges special economic zones a mixed bag: state-led ones have largely failed, privately demanded ones (Tatu City in Kenya, a Chinese-run zone outside Addis Ababa) succeed when simply ‘left alone.’ His next project: a developmental history of the UK.
Related
- What Makes Economies Grow — theme; Studwell anchors the structural-transformation camp (industrial policy as the proven convergence engine) and supplies the population-density argument
- Joe Studwell — speaker; author of How Asia Works and How Africa Works
- Tyler Cowen — host
- What Makes a Great Investor — theme; Studwell’s allocation logic (populous markets, stable growth as the investable signal) speaks to capital deployment in frontier economies