The Information Technology and Innovation Foundation has recently published a report to know and understand the innovation system of the United States of America.
The report identifies the general elements that make up a national innovation system, including a description of the innovation triangle that measures firms, legislation, and country innovation and is used to predict the success of an innovation system in promision. technological development and economic growth. The report uses this framework to analyze the US national system and assesses the strengths and weaknesses of individual components and how those components are stabilizing or deteriorating relative to their competitors.
The report can be found at: http://www2.itif.org/2014-understanding-us-innovation-system.pdf