Substituting imports - The strength of regional value chains

A glance to the Asian and South American results

Source: Coffee Intelligence website

In a world once again debating the relocation of production chains, technological autonomy, and resilience in the face of global crises, understanding why Latin America failed to consolidate its industrial sector—while Asia succeeded—is not merely a historical exercise; it is a guide for the present. Decisions regarding how surpluses are invested, what type of business class is fostered, and whether the state acts as a mere regulator or a strategic partner still determine the difference between relying on raw materials and generating one's own value-added output. Revisiting Import Substitution Industrialization (ISI) is not about looking to the past; it is about asking whether we are repeating the same mistakes or learning from them to design industrial policies that truly transform the region's productive structure.

Global Supply Chains

It's important to first understand what we mean by a value chain and what it encompasses. It includes all the different activities necessary for the production of a product or service. Among the links in the chain, we distinguish the acquisition of raw materials and product design. In addition, other processes such as manufacturing and distribution must be carried out until the final sale to the consumer.

It's worth noting that today, these different processes are not carried out in a single location; they are distributed throughout the world.

The golden opportunity arrived

To understand the development of industry in Latin America and the Caribbean, we must first look at the historical stages through which its economy evolved, taking Argentina as the leading regional example that set the pattern for the rest. From 1880 to 1930, the region's wealth came almost exclusively from primary product exports, which served as its entry point into international value chains. Argentina had vast natural resources but depended on foreign capital and immigrant labor to build transport systems, port infrastructure, and urban networks, as well as to modernize agriculture and livestock. 

By the 1930s, the region had accumulated a fragile export-dependent structure, a weak internal market, an embryonic and unprotected industrial sector, and a rentier business class with little interest in diversification. This was the state in which Latin America entered the middle decades of the twentieth century. Then came the two world wars and the Great Depression in between—all within less than a generation. The productive systems of Europe and other industrial centers were devastated. This created an unprecedented vacuum in global supply, and for Latin America, it represented a golden opportunity. The region already had some infrastructure and abundant raw materials; domestic demand could no longer be met by foreign imports; and there was a real opening for local industry to fill the gap left by the destroyed industrial powers. The new model that emerged—known as Import Substitution Industrialization—aimed to transform Latin America into a major industrial center, replacing previously imported goods with locally manufactured products. 

What is an ISI?

The ISI model, developed by Raúl Prebisch in the 1950s, aimed to help developing countries industrialize by replacing imported manufactured goods with locally produced ones. It relied on three steps: protecting national industry through tariffs, providing state financing and subsidies, and building a strong domestic market. The goal was to reduce foreign dependency and achieve economic diversification.

In practice it looks like…

The ISI model was applied in Argentina, Brazil, and Uruguay from the 1930s onward. Argentina started with light industry, which grew quickly, but later struggled when heavy industry required more investment and technology. Brazil saw rapid industrial growth until the 1970s, when inflation and debt became serious problems. Uruguay protected its industry during WWII, but its agricultural sector could not generate enough foreign exchange to keep up.

The results were mixed. Manufacturing grew and economies diversified, but protectionism made local industries inefficient and uncompetitive. States spent heavily on subsidies, creating debt that could not be repaid. Inflation rose, growth slowed, and by the 1980s all three countries had to abandon the model and open their markets.

In short, ISI worked well at first but could not sustain itself. It reduced import dependency but created new problems like technological gaps, fiscal deficits, and economic stagnation. The lesson is that protection alone is not enough without investment in technology, export capacity, and fiscal discipline.

What about Asia…?

In Asia, ISI was applied for a much shorter period than in Latin America. South Korea used it from 1953 to 1964, Taiwan from 1951 to 1958, and Singapore from 1959 to 1965. Protection was also less intense and focused mainly on non-durable consumer goods, while Latin America protected intermediate and capital goods more heavily. The key difference came in the 1960s, when Asian countries shifted from import substitution to export-oriented growth. They eliminated multiple exchange rates, devalued their currencies, reduced protection, and encouraged exports. Meanwhile, Latin America kept inward-looking policies, overvalued currencies, and expansive spending financed by foreign debt, which hurt both exports and import substitution.

The South Korean path

 The South Korean case is the most famous "economic miracle." In 1961, its per capita income was only a quarter of Argentina's in 1930, and it lacked the natural resources that Latin America had. Instead, South Korea created an export-led model. Protectionism existed but was used carefully, as a tool for some sectors rather than the foundation of the economy. 

As industries grew, they required new investments in infrastructure, logistics, and worker training, all made possible by an outward-looking perspective. Profits were distributed across different sectors to grow the economy as a whole, diversifying investments in education and infrastructure. The state acted more as a regulator than as a heavy intervener, avoiding the costly bailouts and subsidies that became unsustainable in Latin America. Privatization was encouraged for quality control and efficiency, and as exports grew, they became self-sustaining without state support. 

Throughout the process, constant technological renewal and investment in education created a qualified workforce, key to increasing global market participation. The result was sustained growth, rising living standards, and a successful transition from a poor agrarian economy to a high-tech industrial powerhouse.

 For emerging economies to remember

The contrasting experiences of Latin America and Asia offer a valuable lesson for developing countries today. As global value chains undergo major reallocations due to geopolitical shifts, technological change, and supply chain disruptions, a new window of opportunity is opening for emerging economies. The key lies not in repeating the old ISI model of prolonged protection and isolation, but in applying its principles strategically and temporarily. Countries should protect infant industries just enough to let them grow, but also push for export competitiveness, technological upgrading, and integration into global markets before protection becomes a crutch. South Korea showed that the model works best when it is applied briefly, combined with investments in education and infrastructure, and followed by timely liberalization. Today, nations that learn from both the successes and failures of the past can seize this moment to industrialize, diversify, and position themselves effectively in the new global landscape, avoiding the traps of dependency, debt, and inefficiency .