Hotelling’s lemma

E196774

Hotelling’s lemma is a result in microeconomics that links a firm’s profit function to its supply and factor demand functions via partial derivatives.

All labels observed (2)

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Hotelling’s lemma canonical 2
Hotelling's lemma 1

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Statements (37)

Predicate Object
instanceOf economic theorem
result in microeconomics
appliesTo competitive firm
multi-input firms
multi-output firms
assumes differentiable profit function
price-taking behavior
profit maximization
well-behaved technology
category microeconomic lemma
coreIdea factor demand equals negative partial derivative of profit with respect to input price
supply equals partial derivative of profit with respect to output price
domain dual approach to production
field microeconomics
production theory
theory of the firm
formalStatement partial derivative of profit with respect to an input price equals minus the firm’s optimal demand for that input
partial derivative of profit with respect to an output price equals the firm’s optimal supply of that output
historicalContext developed in early 20th century
implies factor demand functions inherit properties from profit function
supply function inherits properties from profit function
mathematicalForm profit function is convex in prices under standard assumptions
namedAfter Harold Hotelling
relatedTo Shephard’s lemma
duality theory in microeconomics
envelope theorem
relates factor demand function
profit function
supply function
requires profit function defined as maximum over feasible production plans
usedFor comparative statics in production theory
deriving factor demand from profit functions
deriving supply functions from profit functions
empirical estimation of supply behavior
usedIn applied production economics
general equilibrium analysis
industrial organization

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Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Harold Hotelling notableWork Hotelling’s lemma
Harold Hotelling hasConceptNamedAfter Hotelling’s lemma
Hotelling notableConcept Hotelling’s lemma
subject surface form: Harold Hotelling
this entity surface form: Hotelling's lemma