Final answer:
Developing and performing marketing across national boundaries is referred to as International marketing, which involves tailoring strategies to reach customers in different countries, and is part of globalization efforts. It offers growth opportunities but also challenges for antitrust authorities.
Step-by-step explanation:
The term 'developing and performing marketing across national boundaries' refers to International marketing. This involves companies extending their marketing strategies beyond their domestic borders to reach customers in different countries. This can include a variety of activities such as foreign market research, entry strategy formulation, and the adaptation of marketing tactics to fit local cultures and regulations. International marketing can help businesses expand their reach and tap into new markets, leading to increased growth and diversity in their customer base.
International marketing is part of the broader concept of globalization, which has influenced the broadening of markets and intensified competition. However, while it presents new opportunities, it also poses challenges for antitrust authorities as companies potentially extend monopolies internationally, which can be problematic for national regulators to control.