Robert Guest, the business editor for The Economist, has organized insights gleaned from 20 years of reporting on and analyzing events around the world into a breezy yet profound account of the flow of people and ideas across borders.

Raw immigration statistics miss the “networks of innovation,” as Guest calls them. Immigrants may find it difficult to adapt to a new land with strange customs and a new language. But in just about any American city they find a community of people like themselves who can ease the transition and help them get established. This process is good for everyone involved.

For example, Indian immigrants to America—most notably Silicon Valley engineers—are tightly networked among themselves and have contacts in India and around the world. Having made their fortunes, some then return to India to pursue business or philanthropic activities. To illustrate, Guest describes the Universal Identity program. Hundreds of millions in India have no public identity beyond their immediate communities. A team of Indian expatriates returned to India and launched a program to create a computer-based system that would allow Indians to submit to fingerprinting and retina scans and to receive a national ID number that would serve as their entrée into the modern Indian economy. Libertarians look askance at government identification numbers, but in rich countries we take for granted our ability to prove our identities. Continue reading →