Market failure is an economic concept that identifies situations where the allocation of goods and services by a free market is not Pareto efficient, resulting in a suboptimal societal outcome. As an academic concept, it investigates the causes, characteristics, and consequences of such inefficient resource distributions, including phenomena like externalities, public goods, asymmetric information, and market power. Its significance lies in providing a theoretical framework for understanding the limitations of relying solely on market mechanisms and informing the potential rationale for government intervention or other institutional correctives aimed at improving economic efficiency or achieving broader social welfare goals.