The U.S. tax code can be a cumbersome beast. How did Mitt Romney manage to pay roughly 15 percent in taxes last year?

Should the rich be taxed more? And how much more? Americans offered their latest opinions to Gallup.

News is out this morning that Mitt Romney's effective tax rate is around 14 percent. But that's a different tax rate calculation than the one you're probably familiar with.

Mitt Romney has revealed his tax returns, but how does that compare to others who earn around the same amount of money?

The Republican candidate paid 13.9 percent of his income in federal taxes in 2010, a lower percentage than many people with less income pay. But higher tax rates on Mitt Romney's investment income would raise taxes for others, too.

Presidential hopeful Mitt Romney has finally released his tax returns. How does he compare to the average millionaire, and the average American?

We speak to a private equity insider about whether the industry is really full of 'vulture capitalists,' or if it serves a necessary function in our society.

Mitt Romney has received criticism for his time at Bain Capital. What does Bain, and similar private equity firms, really do?

Last night, Republican presidential hopeful Mitt Romney said that President Obama would like to turn the U.S. into a social welfare state. But even if he wanted to, how much impact does a president have on the economy anyway?

Mitt Romney’s role as founder of Bain Capital has prompted rivals to criticize him for destroying jobs. What exactly do private equity firms do?