This paper reviews dynamic general equilibrium models in order to collect insights on the interaction between economic growth and environmental issues. The authors discuss the Ramsey model and extend it for natural resource inputs and pollution, as well as for endogenous technical change. Green growth becomes within reach if there is good substitution, a clean backstop technology, a small share of natural resources in gross domestic product, and/or green directed technical change.
Achieving global goals for poverty reduction, economic growth and environmental health will require widespread innovation and implementation of new and appropriate “green growth” technologies. Establishing a sufficiently large suite of innovative options, suitable to all economies, and at the urgent pace required will involve unprecedented innovation activity not only from developed regions, but also from new clusters and enterprises in emerging economies and least developed countries. Stronger international cooperation can play a critical role in facilitating this transformative process. In this paper, we look at areas for new partnerships or cooperation that could most effectively accelerate a green growth transformation. We do this by reviewing the components of a successful innovation “ecosystem,” assessing the current status and prospects for green growth innovation, compiling and analyzing existing international initiatives, assessing the needs and pragmatic constraints on international institutions, and recommending an integrated approach to spur global green growth innovation partnerships, especially within developing countries.
This paper explores existing patterns of green innovation and presents an overview of green innovation policies for developing countries. The key findings from the empirical analysis are: (1) frontier green innovations are concentrated in high-income countries, few in developing countries but growing; (2) the most technologically-sophisticated developing countries are emerging as significant innovators but limited to a few technology fields; (3) there is very little South-South collaboration; (4) there is potential for expanding green production and trade; and (5) there has been little base-of-pyramid green innovation to meet the needs of poor consumers, and it is too early to draw conclusions about its scalability.