How to beat the brain drain and foster home expertise

According to the United Nations, about20 million people from low- and middle-income countries (LMICs) are currently living in high-income nations as part of the global diaspora of workers in science and engineering. [...]expatriate researchers have played a strong part in developing the information technology sector in India, and returners have founded companies or invested in local start-up firms. International partnerships can give the country's scientists access to state-of-the-art technologies and knowledge.