Rather, we should take Warren Buffett's suggestion and bring our trade into balance with a coupon system.

WSJ: More Trade Deficits Aren't Good Policy �� Letters to the Editor

At Smashwords, up until January of this year, our algorithm for best sellers just looked at absolute downloads, but authors gamed that system by offering discounted or free books using the Smashwords coupon tool.

FORBES: Mark Coker: Indie Authors Are Underpricing Their Books