A new study details how immigrant professional workers in Silicon Valley help fuel entrepreneurship in their home countries and around the world. The study, by AnnaLee Saxenian of the Public Policy Institute of California, surveyed 2,300 high-skilled foreign workers, nearly all of whom (90 percent) are from China, India and Taiwan.

The gist of the report, according to the San Jose Mercury News, is that these workers are so connected to the people and places they know in their home countries that they are able to help their U.S. companies find markets abroad as well as help companies get started in their home countries.