Worked example · EX:economics-and-market-foundations/reconcile-cedar-expenditure-gdp

Reconcile Cedar expenditure GDP

Build net exports, reconcile five expenditure components to nominal GDP, and stop before treating aggregate production as entity revenue or welfare.

Updated Aug 7, 2026 Review due Nov 7, 2026
Worked-example setupScope and assumptions
  • All fictional Cedar values use the same year, geography, current-price units, production boundary, and release vintage.
  • The packet is a simplified expenditure reconciliation, not an official chain-type account.
Period
Fictional year 2
Units
billions of fictional current Cedar dollars
Rounding
Whole billions as supplied; full precision for ratios

Cedar reports consumption 700, investment 180, government consumption and investment 220, exports 90, and imports 110, all in the same current-price billions.

net exports = 90 - 110 = -20
GDP = 700 + 180 + 220 - 20 = 1,080
reconciliation difference = 1,080 - 1,080 = 0

Imports are subtracted because foreign production may already be included in consumption, investment, or government purchases. The subtraction does not say imports are bad, nor does a negative trade balance make GDP negative.

The total is aggregate domestic production expenditure. It cannot be booked as revenue by Cedar companies: the packet supplies no entity, customer, contract, performance, transfer, or recognition evidence. It also supplies no distribution, leisure, health, environmental, or unpaid-work welfare ledger.

Verified calculation · economics foundations analysis

The curriculum loader recomputed this example before it entered the site build. Expand any structured input to inspect the stated facts.

aggregate output
1 field
Inspect data
{
  "cedar_output": {
    "consumption": 700,
    "exports": 90,
    "government_consumption_and_investment": 220,
    "gross_private_domestic_investment": 180,
    "imports": 110,
    "labor_hours": 50,
    "previous_real_gdp": 970,
    "real_gdp": 1000,
    "reported_nominal_gdp": 1080
  }
}

Recomputed result

Values recomputed by the curriculum loader
MeasureValue
expenditure gdp1,080
net exports-20
reported gdp difference0
reported nominal gdp1,080