U.S.

Rank: 1
Last Year's Rank: 1
Score: 78.9

While maintaining its position at the top of the list overall, the U.S. doesn't come anywhere close to running the table in every category: For instance, the US had only the fifth-best environment for R&D, and comes in at No. 7 for the quality of its IT infrastructure. Where the U.S. is tops: legal environment and human capital.