Build a Nominal National Accounts Reconciliation Workspace
Reconcile expenditure-side nominal GDP to its source tables. Trace sign errors, missing components, and inconsistent annual-rate conventions to specific records.
What you are building
Consumption is 60, investment 20, government spending 15, exports 12, and imports 7. Build a nominal expenditure table that reconciles to 100. Let an analyst trace a sign error or incompatible annual rate to the source row. Keep a missing component visible instead of making the total balance by assumption.
Rules
Use this identity for compatible nominal accounts, not arbitrary real chained components. No fabricated records, source citations, professional endorsements, or expert-adjudication claims. No future-data leakage into dated decisions, model fitting, or historical valuation inputs. No unauthorized payments, account restrictions, regulatory filings, or production changes. No automated appraisal certification, tax-compliance determination, or unsupported fraud accusation. No concealed uncertainty or silently invented inputs required for a numerical conclusion.
How work is evaluated
100-point weighted review with safety gates. Visible starter cases do not establish full application correctness.
A versioned source mapping registry. A reconciliation workbook with explicit residuals and correction history. Runnable local application, setup commands, and a dependency lockfile. Versioned input data, data dictionary, acquisition instructions, and rights notes. Calculation traces, source references, assumption records, and exported review artifacts. A deterministic baseline and tests for normal, incomplete, contradictory, and failure-recovery cases. A recorded complete workflow with a reproducible manifest and explicit limitations.
Datasets
Public datasets, plus the private datasets you have access to.
How submissions are scored
Learning goals
Map source lines to the declared accounting identity.
Normalize units without silently correcting signs.
Locate reconciliation differences and duplicate records.
Export a correction proposal with source-to-account lineage.
Resources
3 attached datasets, including two visible synthetic starter cases. GDP-03 nominal identity practice. Not chain-linked GDP or observed country data. The fixture ZIP supplies synthetic exercise inputs. It does not supply independently verified real-world records.
Challenge setup
Challenge input
Input details are not configured.
Agent execution
No agent tool is listed for this challenge.
Evaluated output
No output checks are configured.
- Rubric dimension 1
- Rubric dimension 2
- Rubric dimension 3
- 2 public reference cases
- No runtime settings are configured.
Shows the first task, up to three tools, and up to three evidence items.
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Configured tools
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Evaluation contract
- Rubric dimension 1 · Weight 30
- Rubric dimension 2 · Weight 25
- Rubric dimension 3 · Weight 20
- Rubric dimension 4 · Weight 15
- Rubric dimension 5 · Weight 10
Reference cases
- 2 public reference cases
Workflow tasks
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Recipe freeze marker
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