One, by Edward Lazear of Stanford University Business School, found that workers installing car windscreens increased their productivity when they were put on piece rates rather than on fixed wages.

ECONOMIST: How to tailor pay to performance

While politicians--especially the new administration--focus on rapidly rising health care costs, one rather important piece of good news is that hospital inpatient mortality rates are plummeting.

FORBES: Magazine Article

At his press conference yesterday, President Obama said it is nearly impossible to raise taxes on the wealthy (a key piece of his fiscal strategy) without increasing their tax rates.

FORBES: Mr. President, There Is A Way To Raise Taxes On The Rich Without Raising Their Rates

So they're trying to focus on that piece of inflation that they can control by raising or lowering interest rates.

NPR: Doing the Math on Inflation Figures

And that, a blank piece of paper, is not going to prevent middle-class tax rates from going up.

WHITEHOUSE: Press Briefing

Investors, worried about inflation and higher interest rates, have sold off risky assets, and just about any piece of paper from Latin America is risky.

FORBES: Stepping South Of The Border

With often squalid-housing conditions, and outsized addiction and suicide rates, he argues, how can tribal government think about wasting resources on a piece of land, regardless of its history?

BBC: To whom does Wounded Knee belong?

The answer is that when it comes to retail and wholesale borrowing rates, the lesson of the past few years is that the Bank of England is only one piece of the puzzle, and a smaller one that it was a few years ago.

BBC: Quantitative easing for whom?