what is import substitution industrialization isi 
import substitution industrialization isi is a theory of economics that s typically adhered to by developing countries or emerging market nations as they seek to decrease their dependence on developed countries the approach targets the protection and incubation of newly formed domestic industries to fully develop sectors so the goods produced are competitive with imported goods the process makes local economies and their nations self sufficient under isi theory understanding import substitution industrialization isi the primary goal of the implemented substitution industrialization theory is to protect strengthen and grow local industries this is accomplished through a variety of tactics including tariffs import quotas and subsidized government loans countries implementing this theory attempt to shore up production channels for each stage of a product s development isi runs directly counter to the comparative advantage concept that occurs when countries specialize in producing goods at a lower opportunity cost and export them the history of isiisi refers to the development economics policies of the 20th century but the theory itself has been advocated since the 18th century it was supported by economists including alexander hamilton and friedrich list 1countries initially implemented isi policies in the global south including latin america africa and parts of asia where the intention was to develop self sufficiency by creating an internal market within each country the success of isi policies was facilitated by subsidizing prominent industries such as power generation and agriculture and encouraging nationalization and protectionist trade policies developing countries nonetheless began to reject isi in the 1980s and 1990s after the rise of global market driven liberalization a concept based on the international monetary fund and the world bank s structural adjustment programs the theory of isiisi theory is based on a group of developmental policies the foundation is composed of the infant industry argument the singer prebisch thesis and keynesian economics a group of practices can be derived from these economic perspectives related to and intertwined with isi is the school of structuralist economics conceptualized in the works of idealistic economists and financial professionals such as hans singer celso furtado and octavio paz this school emphasizes the importance of taking the structural features of a country or a society into account in economic analysis this includes political social and other institutional factors a critical feature is the dependent relationship that emerging countries often have with developed nations structuralist economics theories further gained prominence through the united nations economic commission for latin america ecla or cepal its acronym in spanish latin american structuralism has become a synonym for the era of isi that flourished in various latin american countries from the 1950s to the 1980s real world example of isithe ecla was created in 1950 with argentine central banker raul prebisch as its executive secretary prebisch outlined an interpretation of latin america s burgeoning transition from primary export led growth to internally oriented urban industrial development in a report that report became the founding document of latin american structuralism to quote one academic paper it became a virtual manual for import substitution industrialization 2most latin american nations went through some form of isi in the ensuing years inspired by prebisch s call to arms they expanded the manufacturing of non durable consumer goods like food and beverages and then expanded into durable goods such as autos and appliances some nations including argentina brazil and mexico even developed domestic production of more advanced industrial products like machinery electronics and aircraft the implementation of isi was successful in several ways but it did lead to high inflation and other economic problems many latin american nations sought loans from the imf and the world bank when these problems were exacerbated by stagnation and foreign debt crises in the 1970s these countries had to drop their isi protectionist policies and open up their markets to free trade at the insistence of these institutions 