托賓q理論(英語:Tobin's q theory)為美國經濟學家詹姆士·托賓於1969年提出的投資理論,而托賓q比率(英語:Tobin's q)是以企業的股票市場價值和企業的帳面淨值之間的比較。

公式

Tobin's q =

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