We Promised the Poor Would Catch Up. The Data Shows We Lied.

There is a chart I keep returning to, published by the World Bank in 2023, that shows per capita income growth across every nation from 1960 to 2020. What strikes me is not the complexity but the clarity. The lines do not converge. They diverge. The distance between the richest fifth of countries and the poorest fifth has not narrowed over six decades of development assistance, structural adjustment programmes, and promises of market-led growth. It has widened. In 1960, the average person in a high-income country earned 23 times more than someone in a low-income country. By 2020, that ratio was 53 to one.

I am not sure what I expected when I first began reporting on development economics in the early 2000s, but it was not this. It was not the persistence of the gap. It was not the elegance with which the global architecture of aid, debt, and trade had been designed to maintain it.

The Promise

The story we were told in the postcolonial era was simple and seductive. Poor countries would catch up to rich ones through a combination of foreign investment, technology transfer, and integration into global markets. Walt Rostow's 1960 book The Stages of Economic Growth laid out the blueprint: all nations moved through the same developmental stages, from traditional society to mass consumption. It was only a matter of time, capital, and correct policy.

The International Monetary Fund and World Bank, established at Bretton Woods in 1944, would facilitate this convergence. Development aid would flow from North to South. Growth would trickle down from the wealthy to the poor, from capital to labour, from the formal economy to the informal. By the 1980s, this had calcified into the Washington Consensus: liberalise trade, privatise state enterprises, deregulate markets, and growth would follow. The poorest countries received the most emphatic prescriptions.

I know what I am talking about here. I have watched structural adjustment play out in Ghana, Tanzania, and Zambia. I have seen the privatisation of water systems in Bolivia and electricity grids in Nigeria. I have interviewed finance ministers who implemented IMF conditionalities and watched their successors navigate the debt crises those policies produced.

What Actually Happened

The convergence did not happen. Between 1980 and 2020, Sub-Saharan Africa's share of global GDP fell from 3.2 percent to 2.9 percent, even as its share of global population rose from 9.3 percent to 14.2 percent. Latin America's per capita income, which was 26 percent of U.S. levels in 1980, fell to 23 percent by 2019. South Asia made gains, but almost entirely because of India and Bangladesh; Pakistan stagnated.

The countries that did converge—South Korea, Taiwan, Singapore, and later China—violated nearly every prescription of the Washington Consensus. They maintained capital controls, protected infant industries, intervened heavily in credit allocation, and subordinated markets to industrial policy. South Korea's per capita income was lower than Ghana's in 1960. By 2020, it was 25 times higher. The difference was not aid or openness. It was state capacity and strategic autonomy.

Meanwhile, those that followed the prescribed path found themselves locked into commodity dependence and debt spirals. Zambia liberalised its economy in 1991, privatised the copper mines, and opened its markets. Copper still accounts for 70 percent of export earnings. Zambia has defaulted on its debt twice since 2020. The mines are now owned by foreign firms that repatriate profits while the government cannot afford to pay teachers.

The Arrangement

What we call development assistance has always served the interests of the donor more than the recipient. Between 2010 and 2020, according to research by ActionAid International, for every dollar of aid that flowed into developing countries, $2.30 flowed out in debt service, profit repatriation, and illicit financial flows. The net transfer of wealth was upward, not downward.

This was not an accident of policy. It was the design. The debt crises of the 1980s were resolved not by debt relief but by structural adjustment: austerity, privatisation, and market opening that allowed multinational corporations access to telecoms, utilities, and natural resources at fire-sale prices. The conditionalities imposed by the IMF in exchange for loans prohibited the kinds of industrial policy that had worked in East Asia.

I remember interviewing a former Tanzanian finance minister in Dar es Salaam in 2004. He described the IMF missions of the 1990s with a kind of weary precision. "They would arrive with the agreement already written," he said. "Our job was to sign it. If we hesitated, they reminded us that without their approval, no other creditor would lend to us. We had no choice." Tanzania privatised its banks, its railways, and its grain marketing board. Growth returned, but it was concentrated in Dar es Salaam. Rural incomes stagnated. The country remains dependent on aid, which now constitutes 26 percent of the national budget.

The Evidence Arrives

By the early 2000s, a new generation of development economists began producing evidence that contradicted the Washington Consensus at every turn. Randomised controlled trials, pioneered by Esther Duflo and Abhijit Banerjee at MIT's Abdul Latif Jameel Poverty Action Lab, showed that the poor responded rationally to incentives but that markets alone did not provide the infrastructure, health, or education necessary for mobility.

The research showed that small, targeted interventions—cash transfers, bed nets, deworming pills—worked. What did not work was the assumption that liberalising economies would automatically produce growth that would automatically reduce poverty. The trickle-down hypothesis, subjected to empirical testing across dozens of countries, failed.

Yet the policy architecture did not change. The IMF continued to impose fiscal austerity even after its own Independent Evaluation Office concluded in 2016 that austerity had deepened recessions and increased inequality in programme countries. The World Bank continued to finance private infrastructure projects even after its own assessments showed that public provision was more cost-effective in low-income settings.

Who Benefits

Follow the money and the answer becomes clear. A 2020 study by Development Finance International traced aid flows and found that 26 percent of bilateral aid never leaves the donor country—it is spent on consultants, tied procurement, and administrative costs. Of the aid that does reach recipient countries, much of it finances projects designed by and lucrative to foreign firms.

Consider infrastructure. The World Bank and African Development Bank have spent decades financing roads, ports, and power plants across Sub-Saharan Africa. The contracts go overwhelmingly to Chinese, European, and American construction firms. The debt remains on African government balance sheets. When countries cannot pay, they renegotiate under terms that often grant creditors control over the revenue-generating assets the loans financed. The Mombasa-Nairobi railway in Kenya, built with Chinese loans, generates insufficient revenue to cover debt service. The port of Mombasa, Kenya's largest source of foreign exchange, was rumoured in 2021 to be under consideration as collateral. The Kenyan government denied it. The loans remain.

The pharmaceutical industry offers another illustration. Western governments and philanthropies fund health programmes in Africa that purchase drugs from Western manufacturers at prices far above generic equivalents. The Gates Foundation, the largest private funder of global health, has been criticised for promoting intellectual property protections that keep drug prices high. A 2017 investigation by The Lancet found that the Foundation's investments in pharmaceutical companies created conflicts of interest that shaped its funding priorities away from systemic health system strengthening and toward disease-specific interventions that required patented medications.

What It Means to Lose

There is a woman I met in Lusaka in 2018 whose story has stayed with me. Her name is Memory Mwanza. She worked as a nurse in a public clinic that had been slated for privatisation under a World Bank-supported health sector reform. The privatisation was delayed, then abandoned, but the clinic's budget was cut in anticipation. She was paid irregularly. The clinic ran out of antibiotics. She watched children die of infections that were trivially treatable.

"They told us the private sector would be more efficient," she said. "But the private clinics charge fees we cannot afford. The people who need care the most are the people who cannot pay." She was not ideological about this. She simply described what she had seen.

This is what the divergence means at ground level. It means a clinic without antibiotics. It means teachers unpaid for months while debt service is remitted on schedule. It means a generation educated in overcrowded classrooms with outdated textbooks while the national budget prioritises bond payments to investors in New York and London.

The Reckoning

The promise of convergence was not merely wrong. It was a cover story for extraction. The language of development—partnership, capacity-building, sustainable growth—obscured a system designed to maintain asymmetries of wealth and power. The evidence has been available for decades. The World Bank's own research division has published studies showing that liberalisation increased inequality, that austerity reduced growth, that privatisation did not improve service delivery in low-capacity states. The policies continued regardless.

I return to that chart. The lines that do not converge. What it shows is not the failure of poor countries to develop. It is the success of a global economic order in preventing them from doing so. The gap is not an accident of history or culture or geography. It is the result of policies designed, implemented, and sustained by the same institutions that promised to close it.

We tell ourselves stories in order to live, Joan Didion wrote. The question is who controls the telling. For sixty years, the story of development has been written by the World Bank, the IMF, and the donor governments of the OECD. It is a story in which poor countries are perpetually on the verge of catching up, if only they follow the right policies, accept the right loans, open their markets a little wider. The data tells a different story. It tells us that the poor have not caught up because the system was never designed to let them.

What comes next depends on whether we are willing to see that. The evidence is there. The question is whether we trust it more than the institutions that have been wrong for six decades.