life-cycle income hypothesis
E483087
The life-cycle income hypothesis is an economic theory proposing that individuals plan their consumption and saving behavior over their lifetime to smooth consumption, based on expected lifetime income rather than current income.
All labels observed (1)
| Label | Occurrences |
|---|---|
| life-cycle income hypothesis canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4958146 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: life-cycle income hypothesis Context triple: [Franco Modigliani, notableIdea, life-cycle income hypothesis]
-
A.
permanent income hypothesis
The permanent income hypothesis is an economic theory, associated with Milton Friedman and the Chicago School, which posits that individuals base their consumption decisions on expected long-term average income rather than current income.
-
B.
A Theory of the Consumption Function
A Theory of the Consumption Function is Milton Friedman’s influential 1957 economics book that introduced the permanent income hypothesis to explain household consumption behavior over time.
-
C.
Ricardian equivalence
Ricardian equivalence is an economic theory proposing that consumers anticipate future taxes implied by government borrowing and therefore adjust their saving so that deficit-financed tax cuts do not affect overall demand.
-
D.
Fisherian intertemporal choice theory
Fisherian intertemporal choice theory is an economic framework, developed by Irving Fisher, that explains how rational individuals allocate consumption and savings over time to maximize lifetime utility given their income, preferences, and interest rates.
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E.
Ramsey–Cass–Koopmans model
The Ramsey–Cass–Koopmans model is a foundational neoclassical growth model in macroeconomics that analyzes optimal savings, consumption, and capital accumulation over time in a perfectly competitive economy.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: life-cycle income hypothesis Target entity description: The life-cycle income hypothesis is an economic theory proposing that individuals plan their consumption and saving behavior over their lifetime to smooth consumption, based on expected lifetime income rather than current income.
-
A.
permanent income hypothesis
The permanent income hypothesis is an economic theory, associated with Milton Friedman and the Chicago School, which posits that individuals base their consumption decisions on expected long-term average income rather than current income.
-
B.
A Theory of the Consumption Function
A Theory of the Consumption Function is Milton Friedman’s influential 1957 economics book that introduced the permanent income hypothesis to explain household consumption behavior over time.
-
C.
Ricardian equivalence
Ricardian equivalence is an economic theory proposing that consumers anticipate future taxes implied by government borrowing and therefore adjust their saving so that deficit-financed tax cuts do not affect overall demand.
-
D.
Fisherian intertemporal choice theory
Fisherian intertemporal choice theory is an economic framework, developed by Irving Fisher, that explains how rational individuals allocate consumption and savings over time to maximize lifetime utility given their income, preferences, and interest rates.
-
E.
Ramsey–Cass–Koopmans model
The Ramsey–Cass–Koopmans model is a foundational neoclassical growth model in macroeconomics that analyzes optimal savings, consumption, and capital accumulation over time in a perfectly competitive economy.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
consumption theory
ⓘ
economic theory ⓘ microeconomic concept ⓘ saving theory ⓘ |
| alsoKnownAs | life-cycle hypothesis ⓘ |
| assumes |
forward-looking behavior
ⓘ
intertemporal budget constraint ⓘ perfect capital markets in basic form ⓘ rational expectations about lifetime income ⓘ utility maximization over the life cycle ⓘ |
| coreIdea |
consumption depends on expected lifetime income
ⓘ
consumption is smoother than current income ⓘ individuals plan consumption over their lifetime ⓘ saving is used to smooth consumption over time ⓘ |
| criticizedFor |
assuming perfect foresight or rational expectations
ⓘ
ignoring liquidity constraints in basic form ⓘ limited treatment of behavioral biases ⓘ |
| developedInDecade | 1950s ⓘ |
| empiricalIssue |
excess sensitivity of consumption to current income
ⓘ
insufficient decumulation of wealth in old age ⓘ |
| extendedBy |
behavioral life-cycle models
ⓘ
models with liquidity constraints ⓘ precautionary saving models ⓘ |
| field |
economics
ⓘ
household finance ⓘ macroeconomics ⓘ microeconomics ⓘ |
| influenced |
modern consumption-based asset pricing
ⓘ
overlapping generations models ⓘ |
| keyVariable |
expected lifetime resources
ⓘ
human wealth ⓘ non-human wealth ⓘ |
| mathematicalFormulation | intertemporal utility maximization subject to lifetime budget constraint ⓘ |
| predicts |
aggregate saving depends on demographic structure
ⓘ
consumption responds less than proportionally to temporary income changes ⓘ middle-aged individuals save during high-earning years ⓘ retired individuals dissave ⓘ young individuals borrow or save little ⓘ |
| proposedBy |
Franco Modigliani
NERFINISHED
ⓘ
Richard Brumberg NERFINISHED ⓘ |
| relatedTo |
Euler equation for consumption
ⓘ
consumption smoothing ⓘ intertemporal choice ⓘ permanent income hypothesis ⓘ |
| usedIn |
macroeconomic consumption functions
ⓘ
models of household saving behavior ⓘ pension system analysis ⓘ wealth accumulation studies ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: life-cycle income hypothesis Description of subject: The life-cycle income hypothesis is an economic theory proposing that individuals plan their consumption and saving behavior over their lifetime to smooth consumption, based on expected lifetime income rather than current income.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.