An economic problem of having needs and unlimited wants, but limited resources that can be used to achieve those needs and wants.
A level of wealth and consumption of a population (such as a nation or socioeconomic group), measured by factors such as gross domestic product, inflation, income, employment, poverty rate, housing, access to and standard of health care and education, safety, and environmental quality.
An amount of goods and services that are available; an amount of goods that producers are willing to offer for sale.
A development that meets the needs of the present without compromising the ability of future generations to meet their own needs. Sustainable development values resources for their future as well as current uses.