How is a "global city" defined?

A global city is defined as a metropolitan area that serves as a hub for global activities, which includes economic, cultural, and political interactions on an international scale. These cities are typically characterized by their significant influence in global affairs due to their concentrated resources, services, and infrastructure that facilitate connectivity and interaction across borders.

Global cities often host major corporations' headquarters, international organizations, and key cultural institutions, which attract a diverse population and foster innovation and creativity. They act as pivotal economic engines, influencing financial markets and global trade, and are significant players in the global economy. Furthermore, their role in international diplomacy and cultural exchange enhances their status as centers of global influence, making them critical to understanding patterns of globalization and urban dynamics.

In contrast, suggestions such as a city with no influence beyond its borders or one focused solely on local cultural activities do not encompass the broader reach and interconnectedness that characterize global cities. Additionally, defining a city solely by its economic statistics fails to capture the multifaceted roles these urban centers play in global networks.