Here’s my conversation with Charles Fishman about his book, “The Wal-Mart Effect.”

 I asked him how hard it was to get information about the company, which is notoriously secretive about its business and puts pressure on its business partners to keep quiet, too. We also discussed how to measure whether Wal-Mart is good for a community and whether consumers care about any of the criticisms of Wal-Mart as long as they get low prices. As for how they do business with their product providers, Charles told an amazing story about Wal-Mart, Vlasic, and the $2.97 gallon jar of pickles.

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