MARKETWATCH FRONT PAGE U.S. stock futures traded lower Friday on doubts whether the explosive gains seen in the last session can be sustained amid signs of a deteriorating world economy, shown in a warning from Nokia and an outlook miss at J.C. Penney. See full story. Economic Report: Retail sales plunge record 2.8% in October Falling for a fourth straight month, U.S. retail sales plunged a record 2.8% in October as sales of autos and gasoline plummeted, the Commerce Department estimates. See full story. Nokia warns mobile device sales will fall in 2009 Nokia, the world’s top maker of mobile phones, on Friday warned that cell-phone sales industry-wide will fall next year as consumers pull back around the world in the face of a slumping economy and limited credit availability. See full story. It's official but not unexpected: Euro zone's in recession A global economic slowdown, financial turmoil and home-grown problems combine to push the 15-nation euro zone into recession, data show. See full story. Experts want G20 to do no harm Do no harm. That is bottom-line request from economists and policy experts to the global leaders who will gather in Washington this weekend to discuss the economic crisis. See full story. MARKETWATCH COMMENTARY Stocks over the past dozen years are behind T-bills It was almost exactly a dozen years ago that Yale University finance professor Robert Shiller bent Alan Greenspan’s ear, prompting the Fed chairman to give his famous “irrational exuberance” speech. See full story. MARKETWATCH PERSONAL FINANCE With economy unraveling, secondhand stores are suddenly chic Christina Park keeps this a big secret from her husband but is not ashamed to tell all her friends: She shops at a secondhand store for clothing every day.

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