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Now Playing: 12-12-12 Marketplace

Federal Reserve Chairman Ben Bernanke spoke about the fiscal cliff and QE4 today. As some prominent rich people are calling for the government to raise the estate tax as part of the fiscal cliff negotiations, we look at this history of this tax. A number of businesses are benefitting from the 'apocalypse economy.' States have until Friday to decide if they will operate their own health care exchanges or let the federal government do it. Freakonomics Radio's Stephen Dubner talks about what economists like to give -- and get -- during the holidays. And micro-micro-brewing? It's actually called nano-brewing, and reporter Mark Garrison has the story of the explosion of super-small craft beers.