Assessing nature-related socio-economic and financial risks: The case of South Africa

The degradation of nature can significantly impact a country's economic and social stability. Based on the case of South Africa, this study introduces a method to identify the economic sectors most vulnerable to risks stemming from biodiversity loss and assess their potential effects on various socio-economic indicators. Simultaneously, this method highlights sectors that present development opportunities due to a healthier biodiversity.

Context

Recent studies examining the risks to financial system stability associated with nature degradation have been conducted for countries such as the Netherlands, France, and others. These studies consistently underscore that biodiversity loss can have profound destabilising effects. Such effects may arise either from the collapse of ecosystems and the services they provide to economies (referred to as ‘physical shocks’) or from shifts in behaviour, technology, or regulation linked to ecological transitions (‘transition shocks’).

However, these risks extend well beyond the financial sector, particularly in countries from the Global South. How can the macro-financial context be better incorporated into analyses of nature-related risks in emerging economies, where it plays a critical role in the resilience of businesses and institutions? And in the context of climate challenges, how can we better account for the territorial dimension of nature-related risks and conduct spatially explicit assessments??

Goals

Focusing on the case of South Africa, this study evaluates the potential effects of either a physical shock (resulting from the degradation of ecosystem services) or a transition shock (arising from measures or innovations aimed at reducing the pressures certain economic sectors place on biodiversity). These effects will be examined across multiple dimensions, including production, income generation, inflation, employment, wages, external balance, and fiscal stability.

Beyond this broad analysis, the method seeks to identify the specific locations of these risks within the region. This spatially explicit approach aims to provide actionable insights for local decision-makers, enabling them to implement well-informed measures for an effective ecological transition.

Method

This study introduces innovative methods for assessing the socio-economic risks associated with nature degradation, grounded in two main contributions:

Multidimensional analysis of macro-financial and social variables: the study examines the exposure of key macro-financial and social variables to nature-related risks. By using input-output tables extended to include environmental and socio-economic satellite accounts, it identifies how these risks could significantly affect sectors that are directly and indirectly critical to production chains and, consequently, socio-economic stability.
Granular spatial assessment: at the municipal level in South Africa, the study investigates nature-related vulnerabilities through a more detailed spatial analysis. This approach integrates spatially disaggregated economic data with mapped ecological data to ensure consistency, enabling the identification of specific socio-economic exposures.

Together, these two interconnected approaches emphasize the need for a holistic understanding of nature-related risks. They demonstrate the value of interdisciplinary collaboration between economists and ecologists, aiming to balance the intertwined goals of economic prosperity, social stability, and environmental sustainability.

Results

The study identifies economic sectors potentially exposed to significant risks and provides South African stakeholders with a foundation for conducting deeper analyses to determine the extent and materiality of these risks.

In South Africa, for instance, 80% of the country’s exports and 60% of business loans are heavily reliant on the water supply services provided by ecosystems. Beyond direct exposure, shocks affecting sectors dependent on these ecosystem services can cascade through the industrial network, triggering demand or supply disruptions. While 18% of jobs and 24% of salaries are directly exposed to such risks—particularly in the property and manufacturing sectors—these figures rise to 48% and 56%, respectively, when considering activities indirectly linked through value chains.

Given biodiversity’s strong dependence on geographic factors, it is essential to complement prior analyses with geolocalised studies. These analyses identify the economic activities located in areas where ecosystems and their services are already degraded. For example, when factoring in the location of companies involved in exports, the initial estimate that 80% of South African exports depend on surface water supply decreases to around 23%. This revised figure reflects exports generated by activities reliant on surface water supply and situated in municipalities where this ecosystem service is significantly degraded. In other words, when the geographic degradation of ecosystem services is considered, nearly a quarter of net exports are directly vulnerable to water scarcity.

Find out more:

Download the research paper: Socio-economic and spatially-explicit assessment of nature-related risks – The case of South Africa
Watch the replay of the Research Conversations webinar on the research project, with South African partners

Teachings

The method has garnered interest and validation from numerous economic and environmental policymakers, highlighting its relevance. Rather than focusing on precise numerical results, the emphasis lies on the orders of magnitude and the identification of economic sectors that are either highly dependent on ecosystem services (exposed to physical risks) or exert significant pressure on biodiversity (exposed to transition risks). These insights are sparking interest and debate.

One of the key outcomes has been fostering dialogue among South African stakeholders who previously had limited interaction, including the South African National Biodiversity Institute (SANBI), the Department of the Environment, the Department of Finance, and the South African Reserve Bank (SARB).

South African stakeholders are now working to translate these technical findings into accessible materials for non-specialist audiences and to facilitate deeper discussions with representatives from sectors identified as either risk-exposed or offering opportunities for resilience and positive socio-economic impacts.

Furthermore, the South African Reserve Bank, in collaboration with the Agence Française de Développement (AFD), is applying this method to assess the financial sector's exposure to nature-related risks across member countries of the Southern African Development Community (SADC). The Development Bank of South Africa (DBSA) has also begun using this approach to evaluate the exposure of its own portfolio. Future iterations and enhancements of the method are anticipated as its use expands.

Download the project sheet

10/01/2022

Project start date

20/12/2023

Project end date

Biodiversity,

Financial Systems

Sectors

South Africa

Location

Achevé

Status