ABSTRACT
Integration of modelling tools can support decision-making at all levels to identify local targets that are in line with global Sustainable Development Goals. There are various modelling methods in literature of speciality covering various parts of the resource nexus. Most of them do not capture the interlinkage among the different resources and the dynamics of them. Most are limited to two or three resource components of the nexus (e.g. water–energy, water–land, water–energy–land, water–energy–food, water–energy–land) – which certainly can be considered progress compared to the many modelling attempts focusing on environmental variables such as GHG emissions. The different methods to assess resources range from input–output analysis (IOA) to Computable General Equilibrium (CGE) methods as discussed in the previous chapters in this volume. Each of them has their own flexibility and limitations. Some of these provide a fully integrated approach to represent the nexus relations, while others provide an entry point approach considering the influence of one resource on the others or able to specify impacts on either the environment or the economy.
