Final answer:
A firm engages in Global marketing when it has the highest commitment to international markets without prioritizing national or regional segmentation. This approach is part of a long-term strategy typically associated with foreign direct investments and operations of multinational corporations.
Step-by-step explanation:
The firm that engages in marketing with the highest commitment to international markets and overlooks national or regional segmentation is known as engaging in Global marketing. Global marketing strategies are employed by businesses that view the world as one large market with minor geographic and cultural differences. This approach contrasts with domestic marketing, export marketing, and transnational marketing - each of which focuses to varying degrees on tailoring their strategies and offerings to local conditions and markets.
In the context of international business, foreign direct investment (FDI) is mentioned, which indicates a long-run strategic approach to entering foreign markets. This is different from portfolio investments, which involve more short-term, liquid assets. When a firm chooses global marketing, it invests in understanding and serving international customers, which often involves FDI to establish a lasting presence in the global market.
Multinational corporations (MNCs) are typically associated with global marketing, as they operate on a global scale and often seek to minimize the impact of national borders on their operations. However, it is a misconception that they are headquartered primarily in the United States; they are international entities by nature and can have headquarters in various countries around the world.