It is widely acknowledged that policy implementation carries the potential for both synergies and trade-offs between different dimensions of development, that is, positive and negative impacts. It is important that policy makers have access to information about the full range of possible impacts to make policy decisions based on a comprehensive understanding of the likely impacts, in order to maximize the positive and minimize the adverse impacts. An understanding of the type of impacts is an important component in the process of identifying and selecting appropriate tools and methods for impact assessment.

This technical paper and accompanying database provide detailed information on some of the quantitative and qualitative tools and methodologies available to be developed, enhanced, customized, and used for modelling and assessing the impacts of implementation of response measures. In doing so, the paper seeks to lower the informational barrier faced by potentials users of such tools and methods. The database is compiled through stakeholder interactions with the authors and developers of the tools and methodologies.