It's very difficult to compare all the complex government support of industry throughout the world. However, there are two very obvious differences. In the US, R&D that is publicly funded must be published and made public domain. With the exception of security and defense work, this is available to foreign countries. Most other countries do not do this. Also, some countries (Japan and Korea come to mind) have artificially put barriers up to imports, allowing higher profits to be made at home, and allowing exports to be sold at lower prices.