Description
Calculate a benefit-transfer income-adjustment factor from supplied assumptions.
Environmental valuation separates measured quantities, supplied unit values, accounting flows and assumed counterfactuals. A permit balance differs from a verified registry holding, and an avoided-tonne cost requires a defined baseline and cost boundary. Income-adjusted benefit transfer depends on a supplied elasticity rather than establishing transferable welfare benefits.
Calculate a benefit-transfer income-adjustment factor from supplied assumptions.
When to use this tool
Use Benefit Transfer Income Elasticity Factor when you already have sourceIncome, targetIncome, suppliedElasticity and need to calculate a benefit-transfer income-adjustment factor from supplied assumptions.
How to use the tool and how it works
- Enter sourceIncome, targetIncome, suppliedElasticity. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read incomeAdjustmentFactor. Use the output convention below.
Require sourceIncome and targetIncome positive and finite; return (targetIncome/sourceIncome)^suppliedElasticity.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| sourceIncome | Source Income | Required. Finite number; strictly above 0. |
| targetIncome | Target Income | Required. Finite number; strictly above 0. |
| suppliedElasticity | Signed supplied exponent on targetIncome/sourceIncome; not estimated by the tool. | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| incomeAdjustmentFactor | Income Adjustment Factor | Required. Finite number. |
{
"input": {
"sourceIncome": 100,
"targetIncome": 200,
"suppliedElasticity": 0.5
},
"output": {
"incomeAdjustmentFactor": 1.4142135623730951
}
}Limitations and assumptions
- Income units, price bases and population definitions must be comparable. Elasticity and transfer validity are not estimated; underflow may yield zero and nonfinite results are rejected.
- 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
Use the complete emissions, cost, valuation and registry records for an actual environmental assessment. Review the relevant accounting boundary and applicable rules before combining local payment, exemption or unit-benefit terms into a policy conclusion.
References
Similar or alternative tools
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