Innovation Capacity Index
Each year, Harvard Business School compiles the National Innovation Capacity Index, a study of different countries’ innovation potential. In 2010, Sweden was ranked eighth among 173 countries. In terms of the number of trained engineers per capita, Sweden was ranked second, close behind Japan. The study also notes that in the past 15 years, Sweden has had the second-fastest growth rate in the number of patents per capita.
You can read the study in its entirety here.