Mortgage Meltdown, More Pain To Come

Yale University economist Robert Shiller has often dazzled audiences with a chart showing home prices from 1890 to present. Someone even used Mr. Shiller's chart to make a YouTube video that puts its viewer on a roller-coaster ride over peaks and valleys in home pricing. It's a bumpy ride.

Now another economist, Thomas Lawler, says Prof. Shiller's chart is "bogus." Mr. Lawler says Mr. Shiller cobbled together data that are inconsistent and sometimes unreliable. Mr. Shiller defends his work and accuses Mr. Lawler of making "wild allegations."