Global Supply Chains Are Reshaping World Poverty

The Great Unbundling

For most of human history, if a poor country wanted to get rich, it had to build everything itself. Steel mills. Auto plants. Semiconductor fabs. A whole industrial ecosystem, from scratch. It took decades, and most nations never made it.

Then something strange happened. Around 1990, poor countries started getting rich faster than rich countries. The gap between North and South, which had been widening since the Industrial Revolution, began to shrink. Not because the North got poorer, but because the South started climbing a different ladder.

The ladder was global supply chains.

Richard Baldwin, an economist at the Graduate Institute Geneva, argues in a new paper that this shift is "perhaps the most momentous global economic change in the last 100 years" (Baldwin, 2025). His paper, published earlier this year, traces how global supply chains emerged, why they matter, and where they are headed. It is a synthesis of decades of research, and it challenges almost everything you think you know about globalization.

The old story was simple: rich countries made things, poor countries sold raw materials. The new story is different. Poor countries now make things too. But they do not make them alone. They join supply chains that span continents. They specialize in one stage of production, often the labor intensive one, and import the rest.

This is not outsourcing. This is something deeper. It is the unbundling of the factory itself.

Why supply chains changed everything

Baldwin's central insight is that global supply chains solved a problem that had blocked development for centuries. To understand why, you have to go back to the first great unbundling.

Before the 19th century, production and consumption happened in the same place. You could not make something in one country and sell it in another because transportation was too slow and too expensive. Then steam power and railroads changed that. Production could be separated from consumption. Goods could travel.

This first unbundling created the rich world. Countries that industrialized first got richer. Those that did not fell behind. The gap widened.

But the second unbundling, which began around 1990, was different. This time, it was not just goods that could travel. It was know how. Advances in communication technology meant that a manager in New York could coordinate a factory floor in Shanghai in real time. A design team in Munich could hand off specifications to a production line in Ho Chi Minh City by lunchtime.

This changed the development game entirely. Poor countries no longer needed to build their own industrial ecosystems. They could join existing ones. They could plug into a supply chain and start making something almost immediately.

"The revolutionised development options facing poor nations," Baldwin writes. "Now they can join supply chains rather than having to invest decades in building their own."

This is not a small shift. It is a fundamental reordering of how countries get rich.

The economics of joining, not building

Here is how it works in practice. Imagine a country like Vietnam in the early 1990s. It has a lot of workers who are willing to work for low wages. It has a government that wants to attract foreign investment. But it has no car industry, no electronics industry, no nothing.

Under the old model, Vietnam would have to build all of that from scratch. It would need to train engineers, build supply networks, develop a domestic market. It would take a generation, at least.

Under the new model, Vietnam can attract a single factory. A company like Samsung builds a plant to assemble smartphones. The components come from China, South Korea, and Japan. The design comes from California. Vietnam just provides the labor.

That one factory creates jobs. It trains workers. It attracts suppliers. It builds infrastructure. Over time, the country moves up the value chain. It starts making components instead of just assembling them. It develops its own engineers. It becomes a different kind of economy.

This is exactly what happened. Vietnam went from one of the poorest countries in the world to a middle income country in two decades. Its poverty rate fell from 58 percent in the early 1990s to under 10 percent today.

Baldwin's paper documents this pattern across dozens of countries. The mechanism is always the same: foreign direct investment brings technology, management practices, and access to global markets. Local workers learn by doing. The knowledge spreads.

What the data shows

The paper draws on trade data, wage data, and patent citations to track how supply chains have reshaped the global economy. Baldwin shows that the share of developing countries in global manufacturing has risen from about 15 percent in 1990 to over 40 percent today. The share of global income going to developing countries has risen from about 20 percent to over 40 percent.

These are not small numbers. They represent hundreds of millions of people moving out of poverty.

The key metric is what economists call "convergence." For most of modern history, rich countries grew faster than poor countries. The gap widened. But starting around 1990, that reversed. Poor countries started growing faster. The gap began to shrink.

Baldwin attributes this directly to global supply chains. The countries that integrated into supply chains grew fastest. Those that did not fell further behind.

The mechanism is straightforward. Supply chains transfer technology. They transfer management practices. They transfer norms about quality control, punctuality, and reliability. These are things that cannot be learned from a textbook. They have to be learned by doing.

The North de-industrializes, the South industrializes

This has created a strange reversal. Rich countries are de-industrializing. Manufacturing employment has fallen sharply in the United States, Europe, and Japan. At the same time, manufacturing employment has risen in China, Vietnam, Bangladesh, and other developing countries.

This is not because rich countries have stopped making things. They have not. Total manufacturing output in rich countries is still rising. But the share of workers employed in manufacturing has fallen. The jobs have moved.

Baldwin shows that this is a direct consequence of global supply chains. Rich countries keep the high value activities: design, marketing, finance, research and development. They offshore the labor intensive stages. This makes their economies more productive, but it also hollows out the middle class.

The political consequences are now obvious. The regions that lost manufacturing jobs voted for populists. They demanded tariffs and trade barriers. They blamed immigrants and foreigners.

But Baldwin's analysis suggests that the real driver is not trade policy. It is technology. Communication technology made it possible to coordinate production across borders. The same technology is now making it possible to automate production. The two forces are working together.

Where supply chains are going

The paper is not just about the past. Baldwin spends considerable time on where supply chains are headed. The future is uncertain, but he identifies several forces that will shape it.

The first is convergence itself. As poor countries get richer, their wages rise. The labor cost advantage that drove offshoring begins to erode. Some production is already moving back to rich countries, or to lower wage countries further down the chain.

The second is technology. Advances in 3D printing, computer integrated manufacturing, and artificial intelligence are changing the economics of production. It may soon be cheaper to make things close to where they are consumed than to ship them halfway around the world.

The third is geopolitics. The US China trade war, the COVID 19 pandemic, and the war in Ukraine have all exposed the vulnerabilities of long supply chains. Governments are now pushing for "reshoring" and "friendshoring." Companies are diversifying their suppliers.

Baldwin is careful not to predict the future. But he notes that the forces that drove the second unbundling are now weakening. The gains from offshoring may have peaked.

What the research does not prove

It is important to be clear about what Baldwin's paper does not claim. It does not claim that global supply chains are universally beneficial. It does not claim that everyone in developing countries has benefited equally. And it does not claim that the process is sustainable.

The paper focuses on aggregate outcomes: national income, manufacturing output, poverty rates. It does not track the distribution of gains within countries. Some workers in developing countries have seen their wages rise dramatically. Others have been left behind. Women have often benefited more than men, because supply chain jobs tend to be in light manufacturing, which employs more women. But the gains are not evenly spread.

The paper also does not address the environmental costs. Global supply chains involve shipping goods across oceans and continents. They generate carbon emissions. They rely on fossil fuels. The environmental impact is real.

And the paper does not claim that supply chains are the only factor driving poverty reduction. Good governance, education, infrastructure, and domestic policy reform all matter. Supply chains are a catalyst, not a cure all.

The open question

The biggest open question is whether the model can continue. If wages converge, if technology makes offshoring less attractive, and if geopolitics fragments global trade, what happens to the countries that are still waiting to join?

There are about 1.5 billion people living in countries that have not yet integrated into global supply chains. Most of them are in Africa and South Asia. They are watching the ladder get pulled up.

Baldwin's paper suggests that the window for supply chain led development may be closing. The countries that joined early got the biggest gains. The countries that are joining now face higher wages, more automation, and more competition. They may not get the same boost.

This is not a prediction of doom. It is a description of a changing landscape. The countries that succeed in the next phase of globalization will need different strategies. They may need to focus on services rather than manufacturing. They may need to build regional supply chains rather than global ones. They may need to invest more heavily in education and infrastructure.

But the basic insight remains. The old model of building everything yourself is dead. The new model is about joining something bigger. The question is whether the door is still open.

What This Actually Means

• ▸For developing country governments: The window for manufacturing led growth is narrowing. Countries that have not yet integrated into global supply chains should move fast, but they should also invest in services and digital infrastructure. The next wave of development may not look like the last one.

• ▸For rich country policymakers: The political backlash against supply chains is real, but reversing them would be costly. The gains from offshoring have been large, and reshoring would raise prices for consumers. The better approach is to invest in the workers and communities that have been hurt by de-industrialization, not to try to undo the process.

• ▸For companies: Diversification is wise, but don't expect a mass return to domestic production. The labor cost advantages of developing countries are still substantial, and the supply chains that have been built over three decades are not easy to replicate. The future is likely to be regional supply chains, not global ones.

• ▸For activists and NGOs: The environmental and labor costs of global supply chains are real and need to be addressed. But the evidence is clear that supply chains have lifted hundreds of millions of people out of poverty. The goal should be to make them cleaner and fairer, not to dismantle them.

• ▸For everyone else: The world is changing faster than most people realize. The economic map that your grandparents grew up with, where rich countries made things and poor countries sold raw materials, is gone. The new map is more complex, more interconnected, and more fragile. Understanding how we got here is the first step to understanding where we are going.