The Heckscher-Ohlin Theorem states that a country will export goods that utilize its abundant factors of production and import goods that utilize its scarce factors. This concept is rooted in the Heckscher-Ohlin model, which emphasizes the role of factor endowments in determining comparative advantage and trade patterns between countries. By focusing on the availability of resources like labor, capital, and land, this theorem helps explain why countries specialize in certain industries based on their factor endowments.