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Laterlife Household Equivalence Caller Weight Tool

Explicit caller-defined additive household equivalence scale, without choosing an OECD or local poverty scale.

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Description

Form the supplied weighted scale and divide signed income by it.

Ageing research may compare expenditure, resources, and service costs on a stated household or time basis. Equivalence weights and valuation factors are assumptions that need to be disclosed rather than inferred from the resulting number.

Form the supplied weighted scale and divide signed income by it.

When to use this tool

Use Laterlife Household Equivalence Caller Weight when you need a research cost or resource calculation with explicit supplied factors.

How to use the tool and how it works

  1. Enter income, adults, children, firstAdultWeight, otherAdultWeight, childWeight. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read equivalenceScale, equivalentIncome. Use the output convention below.

Require at least one adult, nonnegative children, positive firstAdultWeight, and nonnegative otherAdultWeight and childWeight. Form the supplied weighted scale and divide signed income by it.1

Input fieldMeaning and unitsAccepted input
incomeIncomeRequired. Finite number.
adultsAdultsRequired. Safe integer; minimum 1.
childrenChildrenRequired. Safe integer; minimum 0.
firstAdultWeightFirst Adult WeightRequired. Finite number; strictly above 0.
otherAdultWeightOther Adult WeightRequired. Finite number; minimum 0.
childWeightChild WeightRequired. Finite number; minimum 0.
Output fieldInterpretationReturned shape
equivalenceScaleEquivalence ScaleRequired. Finite number.
equivalentIncomeEquivalent IncomeRequired. Finite number.
json
{
  "input": {
    "income": 30000,
    "adults": 2,
    "children": 1,
    "firstAdultWeight": 1,
    "otherAdultWeight": 0.5,
    "childWeight": 0.3
  },
  "output": {
    "equivalenceScale": 1.8,
    "equivalentIncome": 16666.666666666668
  }
}

Limitations and assumptions

  • Weights and income period are caller defined rather than an official equivalence standard; no household identity, poverty threshold, pension entitlement, or financial advice is established.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Align currency, price year, household scope, and service definitions with the study method. Use the relevant policy or professional assessment for actual entitlement, affordability, or care decisions.

References

  1. Calculation and input contract: gerontology/laterlife-household-equivalence-caller-weight — tool.io

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