Metropolitan areas with population densities of about 4,000 people per square mile tend to produce the highest rate of patenting, according to a recent article in the American Journal of Economics and Sociology. In a study of U.S. metro areas over a ten-year period, the authors found that metro population density has a significant positive correlation with patenting rates.

In the face of the spiraling unemployment in Greece and Spain, the European Union (EU) received encouraging news regarding the economic recovery of firms across its 27-member states.