Fisher equation
E196120
The Fisher equation is a fundamental economic formula that relates nominal interest rates, real interest rates, and expected inflation, widely used in macroeconomics and finance.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fisher equation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1754432 — 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: Fisher equation Context triple: [Irving Fisher, knownFor, Fisher equation]
-
A.
Say's law
Say's law is a classical economic principle asserting that aggregate supply inherently creates an equivalent level of aggregate demand, implying that general overproduction in an economy is unlikely.
-
B.
IS-LM model
The IS-LM model is a macroeconomic framework that depicts the interaction between the goods market and the money market to determine equilibrium output and interest rates.
-
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.
Phillips curve framework
The Phillips curve framework is a macroeconomic concept that posits an inverse relationship between inflation and unemployment, shaping policymakers’ understanding of inflation dynamics and trade-offs in the postwar era.
-
E.
Laffer curve
The Laffer curve is an economic theory that illustrates the relationship between tax rates and government revenue, suggesting that beyond a certain point higher tax rates reduce total revenue by discouraging work and investment.
- 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: Fisher equation Target entity description: The Fisher equation is a fundamental economic formula that relates nominal interest rates, real interest rates, and expected inflation, widely used in macroeconomics and finance.
-
A.
Say's law
Say's law is a classical economic principle asserting that aggregate supply inherently creates an equivalent level of aggregate demand, implying that general overproduction in an economy is unlikely.
-
B.
IS-LM model
The IS-LM model is a macroeconomic framework that depicts the interaction between the goods market and the money market to determine equilibrium output and interest rates.
-
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.
Phillips curve framework
The Phillips curve framework is a macroeconomic concept that posits an inverse relationship between inflation and unemployment, shaping policymakers’ understanding of inflation dynamics and trade-offs in the postwar era.
-
E.
Laffer curve
The Laffer curve is an economic theory that illustrates the relationship between tax rates and government revenue, suggesting that beyond a certain point higher tax rates reduce total revenue by discouraging work and investment.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
economic equation
ⓘ
macroeconomic concept ⓘ |
| appliesTo |
government bonds
ⓘ
interest-bearing assets ⓘ loans and deposits ⓘ |
| approximationType | linear approximation for small inflation rates ⓘ |
| assumes |
inflation expectations are defined
ⓘ
interest and inflation measured in same time units ⓘ rational or formed inflation expectations ⓘ |
| category |
financial economics
ⓘ
monetary theory ⓘ |
| clarifies | difference between nominal and real returns ⓘ |
| component | inflation risk premium (in some applications) ⓘ |
| expressedAs |
1 + i = (1 + r)(1 + π^e)
ⓘ
i ≈ r + π^e ⓘ |
| field |
finance
ⓘ
macroeconomics ⓘ monetary economics ⓘ |
| implies | nominal rate equals real rate plus expected inflation ⓘ |
| influences |
design of inflation-indexed securities
ⓘ
understanding of monetary policy transmission ⓘ |
| namedAfter | Irving Fisher ⓘ |
| originatedBy | Irving Fisher ⓘ |
| relatedConcept |
Fisher effect
ⓘ
inflation expectations ⓘ nominal interest rate ⓘ real interest rate ⓘ |
| relates |
expected inflation rate
ⓘ
nominal interest rate ⓘ real interest rate ⓘ |
| timeFrame | relates rates over a given period ⓘ |
| usedBy |
central banks
ⓘ
financial analysts ⓘ macroeconomists ⓘ |
| usedFor |
asset pricing
ⓘ
bond yield decomposition ⓘ inflation adjustment of interest rates ⓘ measuring ex-ante real interest rates ⓘ monetary policy analysis ⓘ separating real and nominal interest rates ⓘ |
| usedIn |
IS-LM analysis
ⓘ
New Keynesian models ⓘ
linked to:
New Keynesian economics
term structure of interest rates analysis ⓘ |
| usesSymbol |
i (nominal interest rate)
ⓘ
r (real interest rate) ⓘ π^e (expected inflation rate) ⓘ |
| validWhen | inflation rates are not extremely high ⓘ |
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: Fisher equation Description of subject: The Fisher equation is a fundamental economic formula that relates nominal interest rates, real interest rates, and expected inflation, widely used in macroeconomics and finance.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.