Submitted:
19 July 2026
Posted:
22 July 2026
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Abstract
Keywords:
1. Why the World Needs a New Development Lens
2. A Reminder on the Birth of GDP: From Kuznets to Global Macroeconomic Governance
3. HDI, the People-Centered Correction
4. Frontier Knowledge Gaps- We Rarely Measure Potential
5. Introducing the Dynamic Human Potential Index
- o First, it is dynamic, tracking trajectories, risks, and expected future states, not only current achievements.
- o Second, it is investment-sensitive in estimating which intervention combinations are likely to unlock the greatest human potential/potentials.
- o Third, it is spatial and distributional by generating statistics at national, regional, district, community, household, and demographic group levels.
- o Fourth, it is predictive and actionable, as it is embedded in a PDE model that forecasts scenarios and supports public and private investment decisions.
6. Attempting to Define Predictive Development Economics (PDE)
7. A Proposed DHPI Computational Matrix
8. Use Cases- Sub-Saharan African Economies
- o Madagascar is a compelling case for DHPI because it combines rich natural capital, a young population, biodiversity, agricultural potential, tourism assets, and significant human development constraints. The World Bank report shows that Madagascar’s population was estimated at 31.9 million in 2024, with persistently high poverty, affecting more than three-fourths of the population, low human capital, weak infrastructure, recurrent cyclones and droughts, high vulnerability to climate and global shocks and a lack of domestic adaptation capacity due to constrained fiscal space (World Bank, 2026). A DHPI diagnosis for Madagascar would likely identify chronic undernutrition, weak foundational learning, rural isolation, unreliable energy, low agricultural productivity, limited transport connectivity, climate exposure, underdeveloped financial inclusion, and weak capacity to convert natural wealth into broad-based livelihoods.
- o A PDE model could test investment bundles such as nutrition plus early learning plus adaptive social protection in high-stunting districts; rural roads plus irrigation plus storage plus market information in agricultural corridors; renewable mini-grids plus digital finance plus small enterprise support in underserved growth nodes; cyclone-resilient schools and clinics plus shock-responsive cash transfers in high-risk coastal zones; and tourism, biodiversity, and local livelihood packages where conservation and income generation can reinforce each other.
- o Rwanda offers a different but equally important DHPI case. Over the past three decades, the country has achieved strong growth, institutional coordination, digital ambition, and service delivery improvements, but still faces challenges in translating growth into broad-based poverty reduction and enough productive jobs. Rwanda's strategic development ambitions and policy commitments aspire to reach middle-income status by 2035 and high-income status by 2050, but job creation and productivity remain core challenges. A DHPI model for Rwanda would focus strongly on converting human capital into higher-productivity employment. Rwanda’s Human Capital country brief shows progress in primary completion, lower secondary enrollment, youth literacy, immunization, and life expectancy, while also pointing to youth NEET challenges, adult unemployment, and labor market constraints (World Bank, 2024).
- o A PDE investment typology for Rwanda could include skills-to-jobs forecasting linked to agro-processing, logistics, digital services, tourism, construction, and green technologies; secondary cities productivity packages combining housing, transport, digital access, local enterprise finance, and district-level labor market analytics; care economy investments to increase women’s economic participation; climate-smart value chains in rural areas; and digital public infrastructure linked to private innovation ecosystems.
9. Research Agenda and Frontier Knowledge Gaps
- o First is the basic calculus problem -weighting problem by defining how health, learning, income, resilience, climate exposure, and agency are weighted.
- o Second is the latent potential problem, by defining the approach by which societies measure what people and places could become, not only what they are today.
- o Third is the productive transformation problem, which relates to how human capital metrics can be linked to firm productivity, economic complexity, and labor demand forecasting to produce reliable and significant results. Thanks to Monte Carlo simulations and advances in computing power.
- o Fourth is the complementarity problem, which should display combinations of interventions that produce nonlinear gains. The simple analogy is that education without jobs may disappoint, but education plus electricity, transport, finance, and productive firms may transform livelihoods.
- o Fifth is the uncertainty problem, which forecasts how climate shocks, conflict, demographic change, disease outbreaks, commodity prices, social unrest (if any), and debt distress should be integrated into development predictions. Sixth is the governance problem, raising the critical aspect of how ethical AI architecture can prevent bias, data extraction, and technocratic decision-making disconnected from people.
- o The seventh is the country typology problem relating to how to structure DHPI as a useful model ready to generate tailored investment recommendations according to country-specific context, e.g landlocked economies, island states, fragile settings, resource-rich countries, agrarian economies, urbanizing economies, climate-vulnerable territories, and reform-oriented countries with implementation capacity.
10. A Call for a New Development Coalition
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| Rank | Economy | Approx. nominal GDP | Note |
| Largest GDP Economies | |||
| 1 | United States | US$30.77 trillion | IMF 2025 latest estimate, nominal GDP |
| 2 | China | US$19.63 trillion | IMF 2025 latest estimate, nominal GDP |
| 3 | Germany | US$5.05 trillion | IMF 2025 latest estimate, nominal GDP. |
| 4 | Japan | US$4.44 trillion | IMF 2025 latest estimate, nominal GDP. |
| 5 | United Kingdom | US$4.00 trillion | IMF 2025 latest estimate, nominal GDP. |
| Smallest GDP Economies | |||
| 1 | Tuvalu | US$65 million to US$79 million | IMF-based 2025 estimates vary slightly by data vintage, but Tuvalu is consistently identified as the smallest sovereign economy by nominal GDP. |
| 2 | Nauru | US$169 million to US$179 million | IMF-based 2025 estimates place Nauru among the world’s smallest sovereign economies by nominal GDP |
| 3 | Marshall Islands | US$294 million to US$297 million | IMF-based 2025 estimates place the Marshall Islands third-smallest among sovereign economies by nominal GDP. |
| 4 | Kiribati | US$312 million to US$333 million | IMF-based 2025 estimates place Kiribati among the five smallest sovereign economies by nominal GDP. |
| 5 | Palau | US$333 million to US$353 million | IMF-based 2025 estimates place Palau fifth-smallest among sovereign economies by nominal GDP. |
| Pillar | Core question | Suggested variables | Investment use |
| Foundational survival and health | Can people survive, grow, and function? | Life expectancy; child mortality; stunting; maternal health; immunization; disability inclusion; access to primary care | Health systems; nutrition; WASH; maternal care; community health workers |
| Learning and cognitive capability | Are children and youth learning usable skills? | Early childhood development; school readiness; attendance; completion; learning-adjusted years; teacher quality; digital literacy | Early childhood; foundational learning; teacher training; digital education |
| Economic agency and work | Can people convert capability into income? | Labor force participation; NEET rates; informality; underemployment; wage quality; entrepreneurship; access to finance; care burden | TVET; SME finance; childcare; labor-intensive sectors; job matching |
| Productive ecosystem | Does the economy create opportunities? | Firm productivity; energy reliability; road access; market distance; digital connectivity; export complexity; logistics cost | Infrastructure; industrial policy; agricultural value chains; trade facilitation |
| Social protection and resilience | Can households withstand shocks? | Coverage of social protection; adaptive cash systems; food security; savings; insurance; disaster exposure; conflict risk | Adaptive social protection; insurance; shock-responsive safety nets |
| Institutions and civic capability | Can systems deliver fairly and efficiently? | Civil registration; digital ID; fiscal capacity; procurement quality; grievance systems; local governance; trust | Public administration; digital governance; accountability systems |
| Gender and social inclusion | Who is excluded from opportunity? | Gender gaps in schooling; adolescent fertility; child marriage; women’s asset ownership; disability access; regional exclusion | Girls’ education; reproductive health; legal reform; inclusive finance |
| Climate and ecological security | Is human potential protected from environmental risk? | Drought; flood; cyclone exposure; crop suitability; water stress; land degradation; biodiversity dependency; climate finance access | Resilient agriculture; renewable energy; climate adaptation; nature-based solutions |
| Digital and data inclusion | Can people participate in digital economies? | Internet use; broadband coverage; mobile money; digital ID; data affordability; digital skills; cybersecurity trust | Broadband; mobile payments; e-government; digital entrepreneurship |
| Future orientation and aspiration | Do people expect and plan for better futures? | Youth aspirations; migration intentions; perceived mobility; trust; household investment behavior; community participation | Behavioral policy; youth platforms; civic engagement; local innovation funds |
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