Tobin's Q
Updated 2026-08-05
INTRODUCTION
English translation pending.
CORE DEFINITION
Tobin's Q is the ratio of a firm's market value to the replacement cost of its assets, meaning the cost of rebuilding an identical company. When Q exceeds 1, the organization's intangibles such as brand and management add value and further investment is warranted. When Q falls below 1, the firm destroys value and liquidation or sale would beat continued operation. The key condition is a workable estimate of replacement cost, including intangible assets, which is easily distorted.
SCAFFOLDING EFFECT
Reduce cognitive load
- Value detector: compare market value with replacement cost to see whether the organization multiplies or shrinks asset value. - Portfolio call: keep and reinvest where Q exceeds 1 and consider divestiture where it does not. - Career mirror: apply the same ratio to your salary against the cost of replacing you.
Anchor fast decisions
The ratio measures whether the organizational shell amplifies or discounts the assets inside it. A Q above 1 implies that intangibles such as brand and management earn excess returns, so investment pays; a Q below 1 implies value destruction, so capital is better reallocated. It thus sets the boundary between investment and liquidation.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Tobin's_qverified
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