Innovation within OECD countries is highly concentrated in a few regions, often capital city regions.
Research and development expenditure in 2015 ranged from 6% of GDP to negligible proportions of regional GDP. In Korea, Sweden, Austria, Denmark, and Germany, expenditure on R&D was particularly high, with an average outlay of around 3% of GDP or more ( 1.16). In those countries regional differences are also substantial. For instance, around 5% of GDP is spent on R&D in Styria (Austria) and Baden-Württemberg (Germany), which is approximately five times and three and a half times higher than in Burgenland or Saxony-Anhalt, respectively.