Induced demand is the phenomenon that after supply increases, more of a good is consumed. This is entirely consistent with the economic theory of
supply and demand; however, this idea has become important in the debate over the expansion of
transportation systems, and is often used as an argument against widening roads, such as major commuter roads. It is considered by some to be a contributing factor to
urban sprawl.
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demand for a product which can satisfy a want which is unable to be satisfied by any existing product.