Why this is mistaken
Transfers change who receives modeled surplus. Deadweight loss is the portion of benchmark total surplus that disappears from the scoped buyer-and-seller sum because trades or other gains no longer occur.
Repair the calculation by building consumer and producer surplus under both the benchmark and comparison, adding each pair, and taking the total difference. Then identify transfers separately and reconcile the change.
The result is not an entity expense, impairment, liability, or cash flow without an independent accounting event and applicable recognition evidence.
Where to watch
When this mistake may appear
- A policy changes consumer and producer surplus.
- Benchmark total surplus exceeds controlled-price total surplus.
Check your work
Your work may contain this mistake if:
- Adds every buyer loss to deadweight loss even when sellers receive the transfer.
- Debits an accounting loss for the welfare triangle.
- Computes deadweight loss without reconciling total surplus under a common scope.