Now Playing: 10-19-12 Marketplace

Economist John Maynard Keynes predicted long ago that new technologies would by now allow people to work only 15-hour work weeks. But are we closer to that than we think? Meanwhile, we look into whether bookshelf makers have been hurt by the shrinking publishing industry. In an effort to affect climate change, a California businessman dumped 100 tons of iron dust into the Pacific Ocean. On the 25th anniversary of Black Monday, we explore the chances of it happening again. And China bureau chief Rob Schmitz looks back into history of the trade relationship between the U.S. and China.