(p. 7B) Previous studies have shown that, despite the success of firms like Facebook, the number of startups has dropped sharply, from about 13 percent of all firms in the late 1980s to about 8 percent in 2011. Now, a new study from the National Bureau of Economic Research reports that the expansion of the remaining startups — which traditionally has been much faster than the growth of existing companies — has slowed considerably. By some measures, it now barely exceeds the average of older companies.
So there’s a double whammy: fewer startups and slower growth among the survivors. This could be one reason why the recovery from the Great Recession has been so sluggish, with the economy’s growth averaging about 2 percent annually from 2010 to 2014, much slower than earlier post-World War II recoveries.
I strongly suspect, but am not sure, that the NBER working paper referred to above, is:
Decker, Ryan, John Haltiwanger, Ron Jarmin, and Javier Miranda. “Where Has All the Skewness Gone? The Decline in High-Growth (Young) Firms in the U.S.” NBER Working Paper # 21776, Dec. 2015.