The public-private partnership involved in the development of Bt eggplant in India is unique in the context of developing countries, where poor farmers' access to technology is limited. The key questions arising in this context are: Who adopts what kind of technology? What are the factors...

Demand heterogeneity often makes it profitable for firms to price and promote goods and services differently in different market segments. When private consumption brings public benefits, this same heterogeneity can be used to target public subsidies. We explore the design of public–private...