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Sectarian conflict in Iraq between Shiites and Sunnis following the U.S. withdrawal. Efforts by former Baathist party members and officers in the Saddam regime to aggravate sectarian tensions.

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The new government of prime minister Enrico Letta takes office in Italy in April 2013 following the reelection of president Giorgio Napolitano. Letta is 46 years old and represents a new generation in Italian politics. He is a former Christian Democrat and member of the European parliament. Letta studied at the University of Pisa, and did graduate work in international affairs. In the 1990's he was president of the European Young Christian Democrats. He was associated with Beniamino Andreatta, a Christian Democrat economist and founder of research group Arel. Letta was his chief of staff when he became foreign minister in 1993. In 1998 Letta was minister for European Affairs, and the following year Industry minister. In 2009 Letta became deputy secretary of the Democratic party. The firm European connections, a good sense of how Italians feel about the economic changes, a connection with young people, and his grasp of the needs of business and labor in improving Italian competitiveness, make him an excellent choice after the inconclusive parliamentary elections in Italy. ...

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Vanguard economists using the work of Stanford Unversity economists Bloom and Baker and University of Chicago economist Davis have developed their own estimates of the cost of overall uncertainty to the U.S. economy. Bloom, Baker and Davis show the level of overall uncertainty in 2011-2013 is about 50% higher than the level seen since 1985. Vanguard's estimates are for a drag on the U.S. economy of about $261 billion in deadweight losses from this uncertainty- uncertainty in monetary policy, uncertainty in deficit reduction, uncertainty in business investment. Their estimates show 1 million jobs not created, job growth per month lower by 45,000 in the last 2 years, and gdp growth of about 3% per year in 2011 and 2012 in place of the 2% average recorded, in the absence of these uncertainty shocks experienced by the U.S. economy. McNabb points out that the market gains of the S&P 500 are based on an unstable foundation as long as this overall uncertainty is not lifted and create a serious disconnect....

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Samsung increases its share of the global smartphone market to 33% for the first quarter of 2013, and Apple's share drops from 23% to 18%, according to Strategy Analytics. Samsung is targeting the low end of the smartphone market. Samsung's manufacturing capabilities give it an advantage in responding to market demand.