As Marc Weisbrot writes in the Guardian:
John Schmitt and Nathan Lane showed that the United States is not the nation of small businesses that it is regularly dressed up to be for electoral campaign speeches and editorials. If we look at what percentage of our overall labour force is self-employed, or what percentage of manufacturing workers or high-tech workers are employed in small businesses – well, the US ranks at or near the bottom among high-income countries.As economist Paul Krugman noted after reading the study: "One more American myth bites the dust."In other words, the idea that America has more small businesses than other countries is false. More small businesses would be good, as it would mean that more of the "little guys" would have poker chips to play the free market game with.Similarly, breaking up the big banks would lead to more competition and allow smaller banks to fill the lending needs of individuals and small businesses.