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A deficit is the amount by which a sum falls short of some reference amount. In economics, a deficit is an excess of expenditures over revenue in a given time period; in more specific cases it may refer to: * Balance of payments deficit, when the balance of payments is negative * Government budget deficit * * Deficit spending * * Primary deficit, the pure deficit derived after deducting the interest payments * * Structural and cyclical deficit, parts of the public sector deficit * Income deficit, the difference between family income and the poverty threshold * Trade deficit, when the value of imports exceed the value of exports Deficit may also refer to: * Attention deficit hyperactivity disorder, a developmental disorder characterized by attentional problems and hyperactivity * Cognitive deficit, any characteristic that acts as a barrier to cognitive performance * Defect (geometry), angular deficit * Déficit, a 2007 Mexican film by Gael García Bernal == See also == * Government debt, the accumulated amount of deficits; "debt" and "deficit" are sometimes confused. * * Surplus (disambiguation) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Deficit」の詳細全文を読む スポンサード リンク
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