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Deep Dives

In-depth methodological documentation for ONE Data's flagship data stories and research projects.

Deep Dives provide comprehensive documentation of how we build our data-driven research. Each deep dive explains the data sources, analytical decisions, and transformations behind a specific project, enabling others to understand, replicate, and build upon our work.

Available Deep Dives

  • The Great Reversal: Methodology for the Great Reversal report analyzing net flows to low and lower-middle income countries, covering PPG debt, grants, and debt service payments.

  • The Climate Finance Files: Methodology for tracking international public climate finance, including how we handle Rio Markers, the "highest marker" approach, and disbursements data.

  • Hidden Impacts of Rising Interest Rates: Methodology for analyzing expected interest payments on external debt, comparing borrowing costs across creditor types, and examining the relationship between debt service and health spending.

  • Hidden Trend in Health Financing: Methodology for analyzing the effects of COVID-19 surge financing on health ODA trends, including how we calculate COVID-19 related flows and imputed multilateral aid.

  • The Trillions Tracker: Methodology for mapping progress towards closing the $3 trillion development and climate finance gap, covering domestic resources, ODA, non-concessional finance, and SDRs.

  • What will it take to build Africa's vaccine industry?: Methodology for analyzing vaccine supply and demand data, manufacturing facility commitments, and Gavi-related statistics to understand Africa's vaccine manufacturing capacity.