American entrepreneurship, the social force that made this country the envy of the world, is dying. Many different studies, using different ways to measure the growth and success of start-ups, all point to the same conclusion. The decline in U.S. entrepreneurship has been going on for decades.
• A study published in December 2015 by the National Bureau of Economic Research (NBER) shows that start-up activity has been slowing down in the United States for about three decades, dropping sharply over the past 10 years.
