Markets are thought to be the most efficient system for allocating society's scarce resources. However, what if markets FAIL to achieve the efficiency we so desire as a society? Market failures arise when the free market quantity is either greater than or less than the "socially optimal" quantity of a good.
This lesson introduced different ways markets may fail to achieve a socially optimal level of output. In part 2 of this lesson we'll explore in more detail one type of market failure: negative externalities of production.
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