New Yorker writer James Surowiecki challenges the political rhetoric that small businesses drive America's prosperity.  Sharing a history lesson from Marc Levinson's The Great A. & P. and the Struggle for Small Business in America, Surowiecki points to past efforts to control large businesses on behalf of small stores through policing prices that suppliers charged chain retailers.  From his Financial Page column:

These days, government regulation to keep prices high is less popular. But the fetishization of small business continues apace. Some of the support derives from real virtues that small companies offer—diversity of choice, connection to local communities. But much of it derives from the idea that the nation’s economic well-being depends on such companies. Given that the overwhelming number of American businesses are small, and that, as we’ve all heard, small businesses create most new jobs, this seems reasonable enough. But the truth is that, from the perspective of the economy as a whole, small companies are not the real drivers of growth. One can see this by looking at the track record of the world’s economies. The developed countries with the highest percentage of workers employed by small businesses include Greece, Portugal, Spain, and Italy—that is, the four countries whose economic woes are wreaking such havoc on financial markets. Meanwhile, the countries with the lowest percentage of workers employed by small businesses are Germany, Sweden, Denmark, and the U.S.—some of the strongest economies in the world.

This correlation is not a coincidence. It reflects a simple reality: small businesses are, on the whole, less productive than big businesses, and though they do create most jobs, they also destroy most jobs, since, while starting a business is easy, keeping it going is hard. This is true around the world. A recent study by the World Bank that looked at ninety-nine developing countries found that large firms had significantly higher productivity growth. And in the U.S. the connection between size and productivity is, as a 2009 study showed, especially close. In part, this is because big businesses are able to enjoy economies of scale and scope. Big businesses are also better able to make investments in productivity-enhancing technologies and systems; in the U.S., for instance, big companies account for the vast majority of R. & D. spending.

Read Big is Beautiful here.