Veronique de Rugy demolishes it:
Our national obsession with small businesses misses the point. It’s not micro-firms that drive our new, entrepreneurial economy. Young firms—the startups that will grow to be the next Facebook—do tend to be small. But their newness is the relevant factor, not their size.
A 2010 National Bureau of Economic Research paper by University of Maryland economist John Haltiwanger and researchers at the U.S. Census Bureau found there was no consistent link between net job growth rates and the size of a business. Instead, the researchers found that firms younger than 10 years, particularly startups, are the real sources of job growth.
The Dish 