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Traders work on the floor of the New York Stock Exchange on May 6, 2013 in New York City. - 

Stocks were up around the globe this morning. It started with Australia cutting interest rates. Then investors in Japan came back from vacation and pushed the Nikkei up 3.6 percent overnight.

Mark Luschini, chief investment strategist at Janney Montgomery Scott, joins Marketplace Morning Report host David Brancaccio to explain what's got markets running strong.

Follow David Brancaccio at @DavidBrancaccio