In a year when the government enacted one of its largest-ever stimulus bills, guaranteed hundreds of billions of dollars in bank debt, bought hundreds of billions more in mortgage-backed securities, took 60 percent ownership of one car company and put up billions in financing for another, it’s not obvious why you’d dwell on an initiative that basically cost nothing. I nonetheless submit to you that the government’s stress tests—an eight-week effort to vet the balance sheets of the country’s biggest banks—was the single most consequential economic policy of 2009.

Pity the pay czar. When Ken Feinberg announced last month that he would slash pay at seven firms that received federal bailout funds and convert large chunks of compensation to stock units that can’t be sold for years, he was met with almost universal opprobrium. Critics of Wall Street protested that simply paying out salaries in stock rather than cash would have little effect on executives at the bailed-out firms, to say nothing of the banking culture at large.