Public actors need to monitor the state of the environment in order to assess the effectiveness of their actions, prioritize management policies and measures, and thus objectively establish their contribution to the conservation of natural capital. To do so, they must be able to rely on science-based standards to identify the thresholds at which environmental functions can be considered sustainable.

The ESGAP (Environmental Sustainability Gap) is an innovative tool for assessing the condition of a territory’s environmental functions and how sustainable they are. For all critical components of natural capital in the territory concerned (air or water quality, pollution, forest resources, fisheries, etc.), this indicator calculates the difference between their current state and a state that would be sustainable (i.e., a state compatible with the sustainable functioning of the processes necessary for the preservation of life, human activities and well-being). This allows for the calculation of the “environmental sustainability gap”, which highlights the path to environmental sustainability. This can then serve as a guide for public policies to estimate and preserve the critical functions of the natural capital of a given territory. ESGAP has already been tested in New Caledonia, Kenya and Vietnam.

Within the framework of the ECOPRONAT research programme, AFD aims to develop methodologies for assessing strong sustainability, that is, adopting demanding criteria concerning the non-substituability of natural capital by other forms of capital (physical among others) in a territory or country. AFD also wants to promote their use in international frameworks and contribute to emerging international standards on the good ecological state of ecosystems.

Find out more about ECOPRONAT

The ESGAP pilot project recently conducted in Vietnam made it possible to measure the state of the environmental functions of this country. It identified fisheries resources, soil erosion, air and water pollution as the most degraded dimensions. 

It appears that some economic activities can put pressure on these different environmental functions, while other activities depend on their proper functioning. Developing the ESGAP framework is necessary to go further, by integrating the linkages that exist between the economy and the environment and identifying which human activities are concerned. 

In order to do this, the research team will try to link ESGAP measures to socio-economic activities and build a monetary ESGAP. The aim will be to assess the physical risks associated with certain economic activities on the basis of scenarios of environmental pressures (such as the breakdown of supply of certain essential environmental services, for example in agriculture). The development of these new applications of the ESGAP framework aims to guide policy makers in designing more sustainable development paths. 

 

The research project will be conducted in two phases: 

• The first step will consist in building a “monetary” ESGAP that measures the cost (expressed in monetary units) needed to achieve a sustainable environmental state. This cost is considered an unpaid ecological debt: it corresponds to the cost of effective measures that society would have to spend to achieve a good ecological state. It will be calculated as an abatement cost, that is, the expenditure necessary for human activities (such as production and consumption) in Vietnam to reduce their environmental pressures to a level that does not result in degradation of natural capital (or to an acceptable level, considering the good condition standards considered by the ESGAP).
• The second phase will use the modeling framework developed in the first phase, and assess how different public policies can improve Vietnam’s environmental sustainability by 2035, as well as mitigate the economic risks associated with the loss of the country’s natural capital. First, the team will develop scenarios to determine which interventions can improve Vietnam’s ecological status. Secondly, it will assess the extent to which economic risks related to biodiversity (due to the dependence of the Vietnamese economy on ecosystem services) can be mitigated through these interventions.

Since this study is considered experimental research, the different elements outlined in the research proposal and intermediate results may be adjusted throughout the study based on different factors – such as access to data, data quality, difficulties in implementing certain aspects of the methodology, or unsustainable or misleading results.

The team will produce a synthesis of the study, that will be used as a working document for communication purposes. The final deliverable will outline the methodology, database used and main results of the monetary ESGAP applied in Vietnam and the physical risk assessment methodology for the Vietnamese economy. This final deliverable will explore the relevance of ESGAP for the implementation of public policies aimed at achieving a good state of environmental conditions and future research pathways to link ESGAP measures to socio-economic activities.

Contact: 

• Oskar Lecuyer, research officer, AFD

The ecological transition is a unique type of structural change: green industries grow while greenhouse gas-intensive and non-green industries decline. This complex process affects the productive, trade and financial structure of national economies, which can generate transition risks. 

These risks arise from the dependence of economies on high greenhouse gas emitting industries, which constrains their low-carbon transition: 

• External risk: if a country depends on greenhouse gas-intensive industries as a source of foreign exchange, the transition will affect its balance of payments and the country's ability to import goods and services (including the machinery and inputs needed for the transition);
• Fiscal risk: if a country relies on emission-intensive industries as a source of tax revenue, the transition will reduce its budgetary resources, which are needed for public investments relevant to the transition (green infrastructure, social spending...);
• Socio-economic risk: if a country relies on emission-intensive industries as a source of employment, the transition will lead to the destruction of jobs in certain sectors, making targeted measures necessary (social protection, training, etc.).

However, not all countries are equal in the face of the ecological transition: they are affected differently by these changes, depending on the structure of their economy and their trade relations with other economies. 

The ESTEEM model has been developed to identify and better understand these risks, so as to be able to define the most appropriate trajectory for each country.

The ESTEEM macroeconomic model is a tool developed by AFD to understand countries' transition trajectories, in order to:

• Assess the extent to which their economy is exposed to risks of imbalances in the context of a green transition, by identifying the main macroeconomic constraints that may emerge and how they can be addressed to ensure an adequate transition path;
• Take into account the ecological and environmental specificities of countries, as they are more or less exposed to transition risks depending on the structure of their economy.

The research paper "Developing countries' macroeconomic exposure to the low-carbon transition" presents the methodology for assessing countries' exposure to external, fiscal and socio-economic risks. Based on their capacity to adapt their productive structure, it analyses countries' vulnerabilities and risks in these three dimensions. Using an environmental input-output table for 189 countries, it identifies carbon-intensive industries and then estimates each country's direct and indirect dependence on these industries.

Besides the above research paper, which provides a comprehensive analysis, other studies have been developed. The paper "Impacts of CBAM on EU trade partners: consequences for developing countries", for example, uses the ESTEEM model to analyse the impact of the border carbon adjustment mechanism (CBAM) on the European Union's (EU) trade partners. While most analyses of CBAM have focused on the consequences for EU economies, this research paper focuses on developing and emerging economies.

In addition, AFD is conducting ESTEEM projects in Uzbekistan and Vietnam, in which the ESTEEM model is used to provide the authorities of these two countries with an analysis of the macroeconomic impacts of their low-carbon transition. 

Finally, based on the original ESTEEM project, other studies are being developed: 

• ESTEEM-Biodiv seeks to understand the risks linked to ecological dimensions other than dependence on carbon-intensive industries (water stress, excessive land use, pollution, etc.);
• ESTEEM-Dynamic, which started in 2022, seeks to understand how the systemic impacts of a transition vary according to the trajectory or scenario selected. This new model, which is dynamic, does not take economic structures as given: by allowing certain variables to be modified, it makes it possible to assess which are the most appropriate paths to follow in order to reduce the risks of transition and ensure the effectiveness of a transition.

The studies show that, depending on the structure of their economy, their budgetary leeway and the robustness of their social protection system, countries are more or less exposed to the risks and vulnerabilities generated by a transition to a low-carbon economy. The ESTEEM model, by making it possible to identify these risks, helps to anticipate them in order to promote the success of the transition.

The interest of the national applications of ESTEEM – currently in Uzbekistan and Vietnam – is to provide an analysis taking into account the specificities of each country:

• Uzbekistan: although Uzbekistan does not rely much on declining industries, the Uzbek economy is a high emitter of greenhouse gases in key transition sectors, such as electricity and construction. This means that decoupling trajectories requires productive and technological capacity building actions to ensure an adequate transition trajectory, leading to job creation and avoiding fiscal and external imbalances.
• Vietnam: the analysis shows that Vietnam is a highly exposed economy at socio-economic level, particularly because high-paying jobs are located in declining industries. Furthermore, the analysis of the different climate scenarios shows that the economy is very exposed because the country's agriculture will be strongly impacted. Nevertheless, Vietnam is also a very dynamic economy with a strong capacity to migrate to green products, which can contribute to the success of the transition.

Find out more: 

• Developing countries' macroeconomic exposure to the low-carbon transition (AFD Research Papers, October 2021)
• Low-carbon transition: What macroeconomic vulnerabilities for developing countries? (Research Conversation webinar, December 2021)
• Low-carbon transition in Latin America: what are the risks and the main constraints? (Development Matters, OECD blog, June 2022)
• Impacts of CBAM on EU trade partners: consequences for developing countries (AFD Research Papers, March 2022)