Question: What are mark-to-market rules? And should they be changed? Paul Solman: When it comes to the current crisis, this is the question (or one major question): To “mark to market” or not to “mark to market”? Consider a…

Editor’s Note: Paul recently answered “Five Good Questions” on the economy for the PBS Engage blog. You will also be able to find those answers here on the Business Desk all week. Question/Comment:…

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