Economy

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Question: How is the U.S. savings rate, which has gone from near zero percent in the past to 6.9 percent recently, determined? And a more elaborate question: Is it truly the difference between what is earned and what is…

Paul Solman: The third in this week’s series of conversations with economist Simon Johnson has to do with the cap and trade debate — whether cap and trade is a good idea, the feasibility of a carbon tax, and…