The guest on this week's nationally syndicated Motley Fool Money radio show is Ron Adner, an award-winning professor and author of the new book The Wide Lens: A New Strategy for Innovation. Sony created the first e-reader, a full year before came out with the Kindle. So how has Amazon succeeded when Sony had the first-mover advantage? In this audio segment, Adner finds that although Sony had the better product, Amazon had the better overall solution for consumers. Likewise, Adner argues that while the Kindle device is succeeding, the Kindle app is far more important to Amazon's long-term battle with competitors.

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