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If you've redeemed frequent flier miles lately, you may have found airlines are adding fees to them. The idea behind frequent-flier programs was to build customer loyalty.

How long can the fees continue before the loyalty disappears? Alisa Roth reports.

The small loans that have sparked a financing revolution around the world are starting to pique interest in the United States.

Alisa Roth reports.

Looking for new revenue sources, states are considering levying taxes on Internet retail. California is thinking about taxing music downloads, and New York says it's going to start hitting up companies like Amazon.

Alisa Roth reports.

Much of America's trade gap with China has been tied to the yuan holding at 8 to the dollar. The U.S. has pushed China to lower that imbalance and today the yuan fell below 7 to the dollar for the first time.

But Alisa Roth reports it's a case of being careful what you ask for.

Another bad report on the economy from the government today: 80,000 jobs lost in March, the biggest monthly drop in five years.

How bad are things going to get? Marketplace's Alisa Roth went looking for answers.