By the World Economic Forum, for 2014-2015:
http://reports.weforum.org/global-competitiveness-report-2014-2015/?utm_content=bufferd4940&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer

The Global Competitiveness Report 2014–2015

The Global Competitiveness Report 2014-2015 assesses the competitiveness landscape of 144 economies, providing insight into the drivers of their productivity and prosperity. The Report series remains the most comprehensive assessment of national competitiveness worldwide.