Mitt Romney says they’re “job creators” and vows to come to their aid as president. Newt Gingrich visited them on his “jobs and growth” bus tour. President Barack Obama calls them “the engine of our economy.”

If there’s one thing Republicans and Democrats agree on, it’s that small business is the answer to what ails the economy. On these tiny bundles of entrepreneurial energy, they say, rides the nation’s hope for lower unemployment and faster economic growth.