The development prospects of a poor country depend in part on its capacity for innovation. The productivity of its innovators depends in turn on their access to technological knowledge. The emigration of highly skilled individuals weakens local knowledge networks (brain drain), but may also help...

We examine how the spatial and social proximity of inventors affects knowledge flows, focusing especially on how the two forms of proximity interact. We develop a knowledge flow production function (KFPF) as a flexible tool for modeling access to knowledge and show that the optimal spatial...

We document the recent phenomenon of "uphill" flows of capital from nonindustrial to industrial countries and analyze whether this pattern of capital flows has hurt growth in nonindustrial economies that export capital. Surprisingly, we find that there is a positive correlation between current...

Contrary to the recent literature that concludes that the GATT/WTO has been completely ineffective in promoting world trade, this paper furnishes robust evidence that the institution has had a powerful and positive impact on trade. The impact has, however, been uneven. GATT/WTO membership for...

We examine one of the most important and intriguing puzzles in economics: why it is so hard to find a robust effect of aid on the long-term growth of poor countries, even those with good policies. We look for a possible offset to the beneficial effects of aid, using a methodology that exploits...

Most conventional accounts of India's recent economic performance associate the pick-up in economic growth with the liberalization of 1991. This paper demonstrates that the transition to high growth occured around 1980, a full decade before economic liberalization. We investigate a number of...

Some natural resources -- oil and minerals in particular -- exert a negative and nonlinear impact on growth via their deleterious impact on institutional quality. We show this result to be very robust. The Nigerian experience provides telling confirmation of this aspect of natural resources....

We estimate the respective contributions of institutions, geography, and trade in determining income levels around the world, using recently developed instruments for institutions and trade. Our results indicate that the quality of institutions trumps' everything else. Once institutions are...

A dozen countries had weak institutions in 1960 and yet sustained high rates of growth subsequently. We use data on their characteristics early in the growth process to create benchmarks with which to evaluate potential constraints on sustained growth for sub-Saharan Africa. This analysis...

India seems to have followed an idiosyncratic pattern of development, certainly compared to other fast-growing Asian economies. While the emphasis on services rather than manufacturing has been widely noted, within manufacturing India has emphasized skill-intensive rather than labor-intensive...