# oda-measures

How the OECD DAC measures and reports ODA.

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This skill covers how ODA figures are measured, including the flow type, the price basis, and how each financing instrument is valued in ODA. oda-dataset-selection covers which dataset to use.

## References

- [references/flow-types.md](references/flow-types.md): gross disbursements, net disbursements, grant equivalents and commitments: definitions, which questions each fits, ONE's usual choices, and the 2018 methodology break
- [references/price-basis.md](references/price-basis.md): current and constant prices, DAC deflators, and base year choice
- [references/grants-loans-psi.md](references/grants-loans-psi.md): grants, concessional loans, and private sector instruments: ODA eligibility, how each is counted, PSI additionality and transition arrangements, and the policy debate on loan and PSI measurement