The Polycrisis Risk Reduction Index
A transparent 0–100 index of national capacity to reduce, absorb and adapt to compound risk — 40 countries, 18 indicators, six pillars, projected to 2100 under four IPCC pathways.
H Heuristics Research Report · HH-2026-55
The Capacity to Anticipate, Withstand, Adapt to, Recover from and Reduce Vulnerability to Multiple Interacting Crises
The flagship statement of the concept: a general definition usable across disciplines, six capacities from prevention to transformation, and a development-oriented framework that applies four drivers to five systems through a five-stage cycle of continuous improvement.
The defining risks of this century do not arrive one at a time. Climate change, environmental degradation, economic instability, geopolitical conflict, demographic change, public health threats, technological disruption and fragile infrastructure now act on one another, so that the harm entangled crises cause together exceeds the sum of their separate effects. This flagship report sets out a concept for that condition, Polycrisis Resilience, and a framework for building it, the H Heuristics Polycrisis Resilience Framework, which it presents as concepts developed by Hunter Hughes, Founder of H Heuristics. It defines Polycrisis Resilience as the capacity of individuals, communities, institutions, economies, societies and interconnected systems to anticipate, withstand, adapt to, recover from and reduce their vulnerability to multiple interacting crises.
Part I sets out a general definition usable across disciplines, institutions, economies and societies: what makes a polycrisis distinct, the components of the definition, six capacities (risk reduction, preventive, absorptive, recovery, adaptive and transformative), the scales at which resilience is held and for whom, how the concept relates to and differs from its neighbours in the resilience literature, and how it can be assessed. Part II presents the H Heuristics framework, which applies the concept through development: the evidence that development reduces vulnerability, the five interconnected systems it strengthens (economic, technological and infrastructure, environmental, human and institutional), a five-stage development cycle, and a screen for interventions that reduce several vulnerabilities at once.
The report argues that reducing vulnerability before crises occur is the concept’s distinctive element, and that development is one of the strongest forms of resilience on record: deaths from natural disasters per person have fallen by about 98 per cent globally since the 1920s even as recorded disasters became more frequent. It is explicit about the limits of that argument — development is slow and reversible, can create new risks, and does not remove the need for emergency response or global action — and it closes with ten propositions and a five-question research agenda.
A conceptual flagship report in two parts. Part I develops a general definition of Polycrisis Resilience from the resilience, disaster-risk and polycrisis literatures, sets out six capacities and the scales at which resilience is held, compares the concept with neighbouring concepts and the critiques of resilience, and proposes principles for assessment, illustrated with the 166-country capacity scorecard from the H Heuristics Polycrisis Resilience 2026 report (sixteen World Bank indicators averaged as percentiles within five capacities). Part II presents the H Heuristics framework: it reviews evidence that development reduces vulnerability, including decadal natural-disaster death rates from EM-DAT as published by Our World in Data and the Bangladesh cyclone record, describes five interconnected systems and a five-stage development cycle, and applies an illustrative multi-dividend screen to candidate interventions. The screen is a qualitative judgement to be tested with better data. Figures, tables and boxes are listed in the report’s exhibits page.
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