India’s emergence in the world economy over the last decade, has often, in popular discourse, been attributed, at least to a large extent, to its sustained efforts towards technological learning and capacity building. In this paper we present an overview of India’s technological trajectory...

We determine the core characteristics of a climate coalition's optimal policies in a dynamic two country directed technical change framework. Unilateral policies alter the structure of production and thereby innovation incentives across countries. Whenever feasible, optimal policies implement...

Environmental policy affects the distribution of market shares if intermediate goods are differentiated in pollution intensity. When innovations are environmental friendly, a tax on emissions skews demand towards new goods, which are the most productive. In this case along a balanced growth path...

The demographic transition in the Sahel region has been slower than that in the rest of the world. Although child mortality rates have declined in recent decades, they are still higher in West Africa than in other regions. Furthermore, the fertility decline has progressed very slowly, with some...

These two addresses to the National Leaders' Seminar on Population and Development in Nairobi and to the International Population Conference in Mexico City in 1984 concern the urgent and important problem of fast population growth. Rapid population growth slows development, with the poor being...