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Physiological needs include: Air, Water, Food, Heat, Clothes, Reproduction, Shelter [22] and Sleep. Many of these physiological needs must be met for the human body to remain in homeostasis. Air, for example, is a physiological need; a human being requires air more urgently than higher-level needs, such as a sense of social belonging.
Human Scale Development is basically community development and is "focused and based on the satisfaction of fundamental human needs, on the generation of growing levels of self-reliance, and on the construction of organic articulations of people with nature and technology, of global processes with local activity, of the personal with the social, of planning with autonomy and of civil society ...
Needs are distinguished from wants. In the case of a need, a deficiency causes a clear adverse outcome: a dysfunction or death. In other words, a need is something required for a safe, stable and healthy life (e.g. air, water, food, land, shelter) while a want is a desire, wish or aspiration.
In economics, a want is something that is desired. It is said that every person has unlimited wants, but limited resources (economics is based on the assumption that only limited resources are available to us). Thus, people cannot have everything they want and must look for the most affordable alternatives. Wants are often distinguished from needs.
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A needs assessment is a systematic process for determining and addressing needs, or "gaps", between current conditions, and desired conditions, or "wants". [ 1 ] Needs assessments can help improve policy or program decisions, individuals, education, training, organizations, communities, or products.
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Many people get excited when they see something they want or need on sale, be it a new phone or a frozen pizza. And to the great joy of consumers, all sorts of things go on sale constantly ...