Investments in R&D and agricultural innovations have been fundamental to long-term economic growth worldwide. But global resource allocation has been uneven, with some developing countries closing in on developed-world scientific capacities, others regaining ground lost over the past decade or...

Innovation in agriculture differs from innovation elsewhere in the economy in several important ways. In this chapter we highlight differences arising from (a) the atomistic nature of agricultural production, (b) the spatial specificity of agricultural technologies and the implications for...