Economic Definition of free good. Defined.
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Term free good Definition: A resource is free if it can produce all of the goods people want or need it to produce... and then some. Being free, however, doesn't mean a resource is not limited. Maybe it's free because people just can"t figure out what to do with it. Or if it is used for production, people don"t want all that's produced. For most of the time across most of this planet air is a free good. In other words, there is plenty of air to go around, plenty of air to satisfy all of the existing wants and needs. Does this mean that air is NOT valuable? Quite the contrary. Air is extremely valuable. It provides one of the most important inputs into human life. It's a free resource because there's enough to go around.