HONG KONG—American universities and research institutes say the U.S.’s dominance in science and technology could be undermined by toughened U.S. visa requirements that are squeezing the flow of talent from China.
The tighter rules are slowing down work at research labs like the one run by Christo Wilson, an associate professor of computer science at Northeastern University in Boston, who studies how algorithms used by internet companies can reinforce biases or lead to price discrimination.