In nine countries in Latin America and the Caribbean, 99% of South-South cooperation exchanges take place without passing through traditional financial circuits. Cuban engineers building hospitals in Venezuela, Indian doctors training their African counterparts, Brazilian agricultural equipment exchanged for Ecuadorian oil: a parallel commercial system is operating under the radar of Western economic institutions.
This invisible economy represents a major challenge for the IMF and OECD measurement tools, which struggle to capture flows where 11% of exchanges are entirely non-monetized. While public development assistance stagnates, South-South cooperation is reshaping global economic relations through barter, service exchange, and technical agreements.
The essentials
- 99% of South-South cooperation activities in 9 Latin American countries are non-financial
- 11% of exchanges are entirely non-monetized, escaping official statistics
- UNCTAD is developing new indicators to measure this parallel economy
- This cooperation is growing while public development assistance declined by 6.1% in 2024
An economy that escapes Western counters
UNCTAD reveals the extent of a major statistical blind spot. Of the nine countries in Latin America and the Caribbean studied — Argentina, Brazil, Chile, Colombia, Dominican Republic, Ecuador, Mexico, Peru, and Uruguay — South-South cooperation flows follow logics radically different from traditional North-South aid.
Unlike direct financial transfers measured by the IMF and OECD, these exchanges take the form of technical programs, cross-training, expertise exchange, and equipment supply. A Cuban doctor who spends two years in Bolivia appears in no trade balance. Hybrid seeds that Brazil supplies to Ghana in exchange for access to its textile markets generate no measurable banking transaction.
This statistical invisibility masks a growing economic reality. The UNCTAD study shows that 89% of these exchanges involve a monetary component, but 11% function in pure barter economy or service exchange. These 11% represent billions of dollars of economic activity that completely escape institutional radar.
The contrast with traditional aid is striking. When the OECD counts every dollar of official development assistance, which declined by 6.1% in 2024, it ignores Cuban medical brigades operating in 66 countries or the technical training programs that India deploys in sub-Saharan Africa.
Brazil and India reinvent technical cooperation
Brazil illustrates this transformation. Its South-South cooperation programs represent growing activity according to UNCTAD estimates, but only a minority passes through classical monetary transfers. The rest takes the form of agricultural expert missions to Mozambique, public health programs in Haiti, or technology transfers to Angola.
Embrapa, the Brazilian agricultural research institute, has thus trained a growing number of African technicians since 2010. These trainings appear in no IMF statistics on South-South flows. Yet they generate measurable agricultural productivity gains in several African countries.
India follows similar logic with its technical scholarship programs. India hosts 72,218 foreign students in total from 200 countries (all disciplines), primarily from Africa and Southeast Asia. This “educational diplomacy” represents significant investment according to UNCTAD calculations, but escapes traditional statistics because it does not pass through international banking circuits.
These exchanges create lasting ripple effects. Engineers trained in India become prescribers of Indian equipment in their home countries. Agronomists trained in Brazil import Brazilian seeds and techniques. This technical cooperation generates future commercial flows that classical economic models struggle to anticipate.
Cuba demonstrates the power of medical barter
Cuba pushes the non-monetary logic to its apex. Its 28,000 doctors and health personnel deployed in 66 countries represent the world’s largest South-South medical cooperation. These missions generate 6.2 billion dollars in annual revenue for Havana, but function largely through direct barter.
Venezuela provides 55,000 barrels of oil daily in exchange for the services of 20,000 Cuban doctors. Algeria supplies liquefied natural gas in exchange for Cuban medical expertise in anti-tuberculosis efforts. These exchanges completely escape international trade statistics, which only capture monetary flows.
The efficiency of this system sometimes exceeds traditional aid. In Sierra Leone, the 165 Cuban doctors deployed against Ebola in 2014 treated 40% of recorded cases, with a mortality rate 12 points below the international average. This intervention, valued at 180 million dollars by UNCTAD, appears in no development assistance budget because it passes through no Western bank.
Cuban logic now influences other South-South actors. South Africa exchanges its mining technologies for Cuban medical expertise. Vietnam supplies telecommunications equipment in exchange for training its doctors in Havana. These complex exchange chains create a parallel economic system that Western measurement tools do not know how to grasp.
Western aid facing its structural limitations
This rise of South-South comes in a context of declining traditional aid. Official development assistance from OECD countries declined by 6.1% in 2024, falling to 204 billion dollars. This decline reflects European and American budgetary constraints, but also the exhaustion of a vertical model showing its limits.
Recipient countries seek alternatives to Western conditionalities. When the World Bank imposes structural reforms to unlock a loan, South-South cooperation offers immediate solutions without political conditions. A hospital built by Indian engineers in Ethiopia requires no prior health system reform.
This empowerment worries Western financial institutions. The IMF struggles to assess the sustainability of debts that include non-monetary commitments. How do you calculate the debt ratio of a country that repays part of its Chinese loans through mineral deliveries over fifteen years? Classical accounting tools reach their limits.
The OECD is attempting to adapt by broadening its definition of development aid, but its criteria remain centered on financial transfers. Agricultural training programs delivered by Brazil in Africa do not enter official statistics because they do not meet OECD standards of “financial concessionality”.
Indicators to measure the invisible
UNCTAD is developing new tools to capture this parallel economy. Its “Non-Financial South-South Cooperation Index” aggregates fifteen variables: number of experts deployed, duration of technical missions, value of equipment supplied, students trained, technology transfer programs.
These indicators reveal the extent of the phenomenon. South-South technical cooperation has experienced significant growth since 2019, surpassing traditional financial aid. The number of South-South experts deployed exceeded 180,000 in 2024, three times the personnel of Western development agencies.
This methodology is already influencing other institutions. The African Development Bank is testing similar indicators to measure non-monetary intra-African exchanges. The Asian Infrastructure Investment Bank is integrating South-South technology transfers into its impact assessments.
The European Union is observing these developments closely. Brussels is funding a study on integrating South-South flows into its trade statistics. The objective: to prevent Europe from losing total visibility over exchange chains that are reshaping the global economy.
These new measurement tools could redistribute the cards of international cooperation. If the real value of South-South exchanges were accounted for, China, India, and Brazil would appear as development powers rivaling the United States and Europe. A statistical revolution that would transform geopolitical balances.
The stakes go beyond accounting. Measuring this parallel economy makes it possible to understand how Southern countries build their autonomy in the face of Western conditionalities. A system that already functions, whether the Bretton Woods institutions see it or not.
Sources
- UNCTAD - Measuring South-South Cooperation Critical to Achieving Sustainable Development
- OECD - Official Development Assistance Statistics 2024
- World Bank - Report on South-South Cooperation 2024
- OECD Official Development Assistance 2024
- Cuba Medical Missions Data
- India Foreign Students Data