The share of the world’s population living outside one’s native country has grown from  2.3% in 1970 to 3.7% today.   The number of persons born in India who live in the U.S. from from 51,000 in 1970 to about 3 million today. Both trends show the impact of access to and costs of transportation, communications, finance and higher education.  The impact of a global educated cohort on economies and societies is a core aspect of life today.

I addressed this topic in a 2022 posting on seven drivers of migration. Here is more meat on the bone, with India as a case study.

Transportation. Containerization reduced the cost of shipping goods by as much as 90% percent over several decades, linking labor markets more tightly to global demand and in the way creating a mobile skilled manufacturing work and entrepreneurial force.  A round-trip intercontinental airplane ticket that once represented a prohibitive share of income became affordable even for middle-income households in emerging economies. Migration no longer required a permanent break. It could be a real option, be repeated, and allow for circular / multi-country residence and work.

Financial infrastructure. The creation of SWIFT standardized cross-border bank transfers. What once required days and paper documentation moved to electronic confirmation. Digital payment platforms and mobile wallets are now reducing remittances from 6% and some hours or days to well under 1% and instant transfer.

Communication. In 1970, a brief international phone call was expensive and an effort. Today,  voice and video calls across continents are effectively free at the margin, carried over internet networks. Information about jobs, wages, and conditions now circulates instantly.

Meanwhile, higher education expanded rapidly across Asia, Latin America, and parts of Africa. University enrollment multiplied several times over, producing large cohorts of engineers, nurses, technicians, and managers. With portable skills and lower mobility costs, many participate in migration patterns that are increasingly circular rather than permanent, linking origin and destination economies in sustained exchange.

Where this shows up most dramatically

Indians in the U.S. For the United States, decennial census tabulations show the India-born population rising from 51,000 (1970) to 206,087 (1980) to 450,406 (1990) to 1,022,552 (2000). It is about 3 million today. Mostly STEM + other high-skill knowledge work: computer/IT, engineering, and other science/technical roles, with a significant presence in health professions and management/business.  My recent posts have shown how entrepreneurial investment in India drew from American experience. The same can be said for Indians in Canada.