Environment Directorate

Working Papers on environmental-economic modelling


This series is designed to make available to a wider readership selected studies on environmental issues prepared for use within the OECD. Authorship is usually collective, but principal authors are named. The papers are generally available only in their original language English or French with a summary in the other if available.


Critical Minerals Today and in 2030: An Analysis for OECD Countries
by Renaud Coulomb, Simon Dietz, Maria Godunova, Thomas Bligaard Nielsen

Raw materials are essential for the global economy and future development depends on their continued supply. Like fossil fuels, minerals are non-renewable. In general, their deposits in the Earth’s crust are also geographically clustered, making security of supply a potential risk. The purpose of this report is to perform for the first time an analysis of critical minerals for the OECD countries as a whole. 


Integrated Assessment of Climate Change Impacts: Conceptual Frameworks, Modelling Approaches and Research Needs
by Ian Sue Wing and Lisa Lanzi

This paper presents a framework to include feedbacks from climate impacts on the economy in integrated assessment models. The proposed framework uses a production function approach, which links climate impacts to key variables and parameters used in the specification of economic activity. The key endpoints within climate impact categories are linked to the relevant connections for a range of sectors in the economy. The paper pays particular attention to the challenges of distinguishing between damages and the costs of adapting to climate change. The paper also reviews existing studies and available data that can be used to establish linkages between climate impacts and key variables within economic models.


An overview of the OECD ENV-Linkages Model: Version 3
by Jean Chateau, Rob Dellink and Elisa Lanzi

This document provides a detailed technical description of the ENV-Linkages model. The OECD ENV-Linkages Computable General Equilibrium (CGE) model is an economic model that describes how economic activities are inter-linked across several macroeconomic sectors and regions. It links economic activity to environmental pressure, specifically to emissions of greenhouse gases (GHGs). The links between economic activities and emissions are projected for several decades into the future, and thus shed light on the impacts of environmental policies for the medium- and long-term future. In this paper specific attention is given to the equations that form the core of the model. 


An Economic Projection to 2050: The OECD "ENV-Linkages" Model Baseline
by Jean Chateau, Cuauhtemoc Rebolledo and Rob Dellink

This document describes economic baseline projections to 2050 for several world regions. It describes how socio-economic drivers are used to create a consistent projection of economic activity for the coming decades, applying the general framework of "conditional convergence". This economic baseline is created using the ENV-Linkages model version 3. This baseline is used for modelling analysis with the ENVLinkages model as carried out for the OECD Environmental Outlook to 2050 (to be released in Spring 2012). Specific attention is given in this paper to projections for the energy system as part of the economy, to allow detailed links between economic activity and environmental pressures, including emissions of greenhouse gases (GHGs).

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