What is the primary focus of the field that examines how people use limited resources to satisfy unlimited wants?

The primary focus of the field that examines how people use limited resources to satisfy unlimited wants is economics. Economics is fundamentally concerned with decision-making about resource allocation, which includes analyzing how individuals, businesses, and governments prioritize various wants when faced with scarcity. Scarcity refers to the fundamental economic problem where resources are limited while human wants are infinite, prompting the need to make choices about how to best utilize available resources.

By emphasizing the concepts of supply and demand, market structures, and the behavior of consumers and producers, economics provides insights into various aspects of production, distribution, and consumption. This field helps to understand not only individual choices but also broader societal outcomes based on the interactions of numerous agents within the economy.

While business encompasses a wider array of activities related to managing a company and generating profit, and finance focuses specifically on the management of money, investments, and financial systems, they are both subsets that rely on economic principles for effective functioning. Marketing revolves around promoting and selling products or services, which again utilizes economic concepts but does not fundamentally address how resources are allocated in the face of unlimited wants. Thus, economics is the most accurate choice that encapsulates the essence of resource management in relation to human wants.