April 28th, 2010 Podcast

Art Carden discusses with Paul Howard his research on how Wal-Mart's revolutionary product distribution system sharply lowers food prices facing consumers-and may also affect obesity rates in the U.

Art Carden discusses with Paul Howard his research on how Wal-Mart's revolutionary product distribution system sharply lowers food prices facing consumers—and may also affect obesity rates in the U.S.