A central issue of economics is how to fulfill an unlimited demand for goods and services in a world with limited resources.

This statement accurately reflects the concept of scarcity, which is a fundamental concept in economics. Scarcity results from the fact that resources are limited in relation to the unlimited wants and needs of individuals and society as a whole. As a result, economic systems have evolved to allocate resources in the most efficient and effective ways possible, through mechanisms such as prices, markets, and government policies.