A nation with a working population that is insufficient to exploit its resources is said to be

A nation with a working population that is insufficient to exploit its resources is said to be under-populated. This means that the country has more natural resources available than it has people to make use of them. As a result, the nation may experience a shortage of labor, leading to a lower level of economic activity than what could be possible if there were more workers available. Under-population can also lead to a decrease in innovation and technological advancements, as there may not be enough people available to research and develop new technologies. Additionally, an under-populated nation may face challenges in maintaining social services, such as healthcare and education, as there may not be enough people to support these systems. However, it's important to note that being under-populated is not necessarily a positive or negative situation, as it depends on a variety of factors, including the country's resources, infrastructure, and economic goals.