Studying international business theories is essential to steer, strategize, and succeed in a globalized economy, enabling professionals to understand complex trade dynamics, manage cross-cultural risks, and identify international growth opportunities. These theories provide the analytical tools needed to optimize supply chains, enhance competitiveness, and formulate effective, sustainable global strategies.
The theories can be classified into: Classical Country-Based Theories: Mercantilism, Absolute Advantage, Comparative Advantage and Heckher-Ohlin Theory. Modern Firm-Based Theories: Country Similarity, Product Life Cycle, Global Strategic Rivalry and Porter’s National Competitive Advantage.
Mercantilism
It is a form of economic system and nationalist economic policy that is designed to maximize the exports and minimize the imports of an economy. It seeks to maximize the accumulation of resources within the country and use those resources for one-sided trade.
It is also known as “commercialism,” which is a system in which a country attempts to amass wealth through trade with other countries, exporting more than it imports and increasing stores of gold and precious metals. It is often considered an outdated system.
The biggest example being Passed by the British Parliament in May 1773, the Tea Act was a mercantilist policy designed to bail out the struggling British East India Company by granting it a monopoly on tea sales in the American colonies. It allowed the company to ship tea directly to America, bypassing merchants and reducing costs, while enforcing a three-cent tax to assert Parliament’s taxing authority. The Act aimed to save the financially troubled British East India Company by allowing it to dump 17 million pounds of unsold tea in American markets, creating a practical monopoly. Ships carrying tea were also turned away or had their tea destroyed in New York, Philadelphia, and Charleston. The Tea Act was effectively the world’s first corporate bailout (often helping by paying money in difficult situation) the act was designed to save the East India Company from bankruptcy.
Mercantilist economic policies rely on government intervention to restrict imports and protect domestic industries. Modern-day mercantilist policies include tariffs, subsidizing domestic industries, devaluation of currencies, and restrictions on the migration of foreign labor.
Modern-day mercantilism in India is reflected in policies prioritizing domestic manufacturing, reducing import dependency, and fostering a trade surplus, often termed “neo-mercantilism” or economic nationalism. Key examples include the Atmanirbhar Bharat (Self-Reliant India) initiative, the Production Linked Incentive (PLI) schemes, high tariffs on imports, and the decision to stay out of the RCEP (Regional Comprehensive Economic Partnership) trade agreement to protect domestic sectors.
Absolute Advantage
The ability of a country to produce more of a good with the same resources than another country is absolute advantage. India has an absolute advantage in the production of wheat over China and China has an absolute advantage in the production of cloth over India. Absolute advantage in international business occurs when a country can produce more of a good or service with raw material or technology which the country enjoys. It represents superior efficiency due to factors like better technology, climate, or lower labor costs.
Due to abundant oil reserves, Saudi Arabia can produce oil at a much lower cost and in higher volume than most countries, giving it an absolute advantage. China has historically held an absolute advantage in textile production due to a large workforce, lower labor costs, and efficient manufacturing capacity. Japan possesses an absolute advantage in high-end electronics manufacturing owing to its advanced technology and highly skilled workforce.
Comparative Advantage
It is the ability of a country to produce goods at a lower opportunity cost than another country by achieving economies of scale. Reductions in average costs due to increased production levels. For example, China’s low labor costs give it a comparative advantage as a manufacturer over many Western trading partners. South Africa has a comparative advantage in mining because of its mineral wealth.
Brazil has a comparative advantage in coffee production due to climate, while South Africa holds an advantage in mining due to mineral abundance. Germany and Japan have a comparative advantage in automobile manufacturing and high-end machinery due to advanced technology and highly skilled labor, despite higher production costs. India has a comparative advantage in software development and IT services due to a large pool of educated, English-speaking, and cost-efficient professionals, which the U.S. imports.
Eli Heckscher and Bertil Ohlin Theory
It is also known as factor-proportions theory. Both prepared a theory explaining international trade patterns by focusing on differences in factor like cheap labor, raw material, and capital between countries, suggesting that countries export goods using their abundant, cheaper factors and import goods which are scarce.
Bangladesh specializes in clothing (labour-intensive), while Germany exports machinery (capital-intensive). A country with abundant labor (e.g., India) tends to produce and export textiles, while a capital-abundant country (e.g., Germany) specializes in automobile production. While South Korea was historically labor-abundant, it successfully transitioned to capital-intensive exports (electronics) by investing in infrastructure.
Modern & Firm based theories:
Raymond Vernon’s Product Life Cycle (PLC) theory
This explains how trade patterns shift as products evolve from innovation in developed nations to mass production and standardization in developing countries, moving through introduction, growth, maturity, and decline stages. The theory explains how a product’s production and trade patterns shift over time, eventually leading the original innovating country to become an importer of the very product it invented. As the name suggests, this theory talks about a product that goes through different stages. This theory only focuses on the developed nation, not on the developing nation. According to this theory, when a product is in its early life cycle stage, all the raw material and the labor used in making and producing that product belong to the place where the product has been invented or produced. But when that new product is introduced in the world market, then its area of origin shifts to different places
PC Personal computer) were introduced to world by US; its mass manufacturing in low-cost Asian countries declined production in US. Now US purchases Pcs from Asian countries.
Country Similarity Theory (Steffan Linder)
Trade within similar development stages (intra-industry trade) occurs due to similar consumer preferences. states that countries with similar income levels, consumer habits, and industrial development trade similar, high-quality manufactured goods with each other (intra-industry trade). Key examples include massive trade in automobiles between Germany and France, or electronics between the US and Canada.
Global Strategic Rivalry (Krugman/Lancaster)
Firms gain competitive advantage through innovation, R&D, and economies of scale, influencing trade patterns. Competition for leadership in semiconductors, artificial intelligence, and 5G networks, often involving sanctions, export restrictions, and investments in critical infrastructure.
Porter’s Diamond Model
National competitive advantage stems from four interconnected factors: factor conditions, demand conditions, related/supporting industries, and firm strategy/rivalry. Germany’s automotive industry, showcasing strong national advantage through skilled engineers (Factor Conditions), demanding consumers wanting high-performance cars (Demand Conditions), a robust supply chain (Related/Supporting Industries), and intense rivalry between BMW, Mercedes, and Audi driving innovation (Firm Strategy/Rivalry).