Laspeyres formula
E381944
The Laspeyres formula is a price index calculation method that measures changes in the cost of a fixed basket of goods or assets using base-period quantities as weights.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Laspeyres formula canonical | 1 |
| Laspeyres-type index | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3716938 — 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: Laspeyres formula Context triple: [FTSE MIB, calculationMethod, Laspeyres formula]
-
A.
GDP deflator
The GDP deflator is a broad measure of overall price inflation in an economy, capturing the change in prices of all domestically produced final goods and services included in GDP.
-
B.
Alkire-Foster method
The Alkire-Foster method is a widely used framework for measuring multidimensional poverty by identifying who is poor and in which overlapping deprivations they experience across several dimensions of well-being.
-
C.
Fisher equation
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.
-
D.
Kaldor–Verdoorn law
The Kaldor–Verdoorn law is an economic principle that posits a positive relationship between the growth of output and the growth of labor productivity, often used to explain cumulative and self-reinforcing processes in industrial growth.
-
E.
Hicksian demand
Hicksian demand is a concept in microeconomics that describes how a consumer’s demand for goods changes when prices vary while holding utility (satisfaction) constant, often used in welfare and consumer theory.
- 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: Laspeyres formula Target entity description: The Laspeyres formula is a price index calculation method that measures changes in the cost of a fixed basket of goods or assets using base-period quantities as weights.
-
A.
GDP deflator
The GDP deflator is a broad measure of overall price inflation in an economy, capturing the change in prices of all domestically produced final goods and services included in GDP.
-
B.
Alkire-Foster method
The Alkire-Foster method is a widely used framework for measuring multidimensional poverty by identifying who is poor and in which overlapping deprivations they experience across several dimensions of well-being.
-
C.
Fisher equation
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.
-
D.
Kaldor–Verdoorn law
The Kaldor–Verdoorn law is an economic principle that posits a positive relationship between the growth of output and the growth of labor productivity, often used to explain cumulative and self-reinforcing processes in industrial growth.
-
E.
Hicksian demand
Hicksian demand is a concept in microeconomics that describes how a consumer’s demand for goods changes when prices vary while holding utility (satisfaction) constant, often used in welfare and consumer theory.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
cost-of-living index formula
ⓘ
economic index ⓘ price index formula ⓘ statistical index ⓘ |
| appliesTo |
financial assets
ⓘ
goods ⓘ services ⓘ |
| assumes | no substitution between goods in response to price changes ⓘ |
| basePeriod | reference period for prices and quantities ⓘ |
| compares | current-period prices to base-period prices ⓘ |
| componentOf |
Consumer Price Index
ⓘ
surface form:
Harmonised Index of Consumer Prices
many national CPI methodologies ⓘ |
| field |
economics
ⓘ
index number theory ⓘ official statistics ⓘ price statistics ⓘ |
| hasAdvantage |
requires only base-period quantity data
ⓘ
simple to compute ⓘ |
| hasDisadvantage |
does not reflect changes in consumption patterns
ⓘ
weights become outdated over time ⓘ |
| hasMathematicalForm | L = (Σ p_t q_0) / (Σ p_0 q_0) ⓘ |
| hasProperty | upward substitution bias ⓘ |
| holdsConstant | base-period quantities ⓘ |
| isComparedWith |
Fisher index
ⓘ
Paasche formula ⓘ Törnqvist index ⓘ |
| isTypeOf |
Laspeyres formula
self-linksurface differs
ⓘ
surface form:
Laspeyres-type index
fixed-weight index ⓘ |
| isUsedBy |
central banks
ⓘ
international organizations ⓘ national statistical offices ⓘ |
| isUsedIn |
Consumer Price Index
ⓘ
Producer Price Index ⓘ export price indices ⓘ import price indices ⓘ wage indexation ⓘ |
| measures |
changes in the cost of a fixed basket of goods
ⓘ
inflation in a fixed basket ⓘ price level changes over time ⓘ |
| namedAfter | Étienne Laspeyres ⓘ |
| tendsTo | overstate cost-of-living increases ⓘ |
| timeAggregation | compares current period t to base period 0 ⓘ |
| usedFor |
deflating nominal values
ⓘ
indexing contracts to inflation ⓘ measuring real income changes ⓘ |
| uses |
base-period quantities as weights
ⓘ
fixed basket of goods ⓘ |
| weightType | expenditure weights from base period ⓘ |
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: Laspeyres formula Description of subject: The Laspeyres formula is a price index calculation method that measures changes in the cost of a fixed basket of goods or assets using base-period quantities as weights.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Laspeyres-type index