4 Risk Models

Cameron McCormick and SADC-DRM

This chapter is from the South African Development Community (SADC)    It’s purpose is to provide a foundation for studying and preparing countries in southern Africa to deal with natural hazards.

Global Risk Models

Models are used to clarify a problem. They remove characteristics and variables that are assumed (or demonstrated) to have minimal or no impact on an outcome. Here are a couple models that the SADC uses for hazard studies.

InfoRM and GRI

InfoRM is a way to measure the risk of humanitarian crises and how the conditions that lead to them affect sustainable development. It is a risk index that identifies where crises requiring international assistance may occur and analyses that risk so it can be better managed by everyone.

The InfoRM initiative began in 2012. It has evolved from a publisher of a risk index to a forum for shared analysis, and currently (2019) calculates the recent GRI (INFORM Global Risk Index) that uses 50 different indicators to measure hazards and peoples’ exposure to them, vulnerability, and the resources available to help people cope, or in other words: Hazards & Exposure, Vulnerability and Lack of Coping Capacity.

GRI creates a risk profile for 191 countries (including all the SADC countries) that includes both natural and human hazards. Each has a rating between 0 and 10 for risk and all of its components, so it’s easy to compare. All the individual indicators, index components and calculations are open and transparent.

Inform GRI is, therefore, a composite Index For Risk Management identifying countries at risk from humanitarian emergencies and disasters that could overwhelm current national response capacity, and therefore lead to a need for international assistance.

InforRM composition (source: https://drmkc.jrc.ec.europa.eu/inform-index)

WRI

The World Risk Index (WRI) indicates the disaster risk for countries, meaning: the general risk of countries falling victim to a disaster caused by extreme natural events (e.g. cyclones, floods, droughts or sea-level rise).

The WRI is based on a model which also operationalizes the ability of a society to react to such events, considering that social factors, political conditions and economic structures are also responsible for whether a disaster occurs in connection with extreme natural event. This assumes that every society can take direct or indirect precautions to reduce the effects of natural hazards.

The WRI considers natural events and social factors and hence, it computes two dimensions of risk: exposure (which refers to natural hazards, such as floods, sea-level rise, droughts, cyclones) and vulnerability, integrating three aspects – susceptibility (likelihood of suffering harm); coping capacities (depending on governance, healthcare, social and material security); and adaptive capacities (related to coming natural events, climate change, and other challenges).

The concept of the WRI was developed together with the United Nations University’s Institute for Environment and Human Security (UNU-EHS). Since 2018, the Index is calculated by the Institute for International Law of Peace and Armed Conflict (IFHV) of Ruhr-University Bochum. It uses a total of 27 indicators, which are available in publicly accessible data sets.

The most recent assessment (World Risk Report 2019) presents the WRI for 180 countries, including all the SADC States.

WRI scheme
WRI composition note how it includes exposure, vulnerability, and hazards to derive an overall risk.  (source: https://weltrisikobericht.de/english-2)

HDI

The Human Development Index (HDI) is a summary measure of average achievement in key dimensions of human development: a long and healthy life, being knowledgeable and having a decent standard of living.

The HDI simplifies and captures only part of what human development entails, not reflecting on inequalities, poverty, human security, empowerment, etc.

The HDI 2018 for 189 countries has been calculated in the Human Development Report 2019, including all the SADC Member States.

HDI scheme
HDI composition (source: http://hdr.undp.org/en/content/human-development-index-hdi)

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