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Border Price Domestic Margin Bridge Tool

Supplied per-unit border-to-domestic price bridge without choosing a tariff, trade margin or equilibrium model.

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Description

Convert borderForeignPrice with positive domesticPerForeign, then add tariffPerUnit, transportPerUnit, and distributionMargin for domesticPrice.

External-account identities reconcile flows, stocks, and explicit adjustments. Signed residuals are useful diagnostics but do not identify their cause or verify statistical classification.

Convert borderForeignPrice with positive domesticPerForeign, then add tariffPerUnit, transportPerUnit, and distributionMargin for domesticPrice.

When to use this tool

Use Border Price Domestic Margin Bridge when you need a transparent trade or external-account reconciliation term.

How to use the tool and how it works

  1. Enter borderForeignPrice, domesticPerForeign, tariffPerUnit, transportPerUnit, distributionMargin. 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 borderDomestic, domesticPrice. Use the output convention below.

Convert borderForeignPrice with positive domesticPerForeign, then add tariffPerUnit, transportPerUnit, and distributionMargin for domesticPrice.1

Input fieldMeaning and unitsAccepted input
borderForeignPriceBorder Foreign PriceRequired. Finite number.
domesticPerForeignDomestic Per ForeignRequired. Finite number; strictly above 0.
tariffPerUnitTariff Per UnitRequired. Finite number.
transportPerUnitTransport Per UnitRequired. Finite number.
distributionMarginDistribution MarginRequired. Finite number.
Output fieldInterpretationReturned shape
borderDomesticBorder DomesticRequired. Finite number.
domesticPriceDomestic PriceRequired. Finite number.
json
{
  "input": {
    "borderForeignPrice": 100,
    "domesticPerForeign": 2,
    "tariffPerUnit": 10,
    "transportPerUnit": 15,
    "distributionMargin": 25
  },
  "output": {
    "borderDomestic": 200,
    "domesticPrice": 250
  }
}

Limitations and assumptions

  • Add-on terms are signed domestic-currency amounts per unit; taxes, contract rules, and monetary rounding are not inferred.
  • 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

Reconcile the full dataset with its accounting and valuation conventions before interpreting a balance or value-added estimate.

References

  1. Calculation and input contract: international-economics/border-price-domestic-margin-bridge — tool.io

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