Nobel Prize in Economics laureate Paul Krugman and Nobel Prize in Chemistry laureate Roger Tsien attend a news conference at the Royal Swedish Academy of Sciences in Stockholm

 
Nobel Prize in Economics laureate Paul Krugman and Nobel Prize in Chemistry laureate Roger Tsien attend a news conference at the Royal Swedish Academy of Sciences in Stockholm
Nobel Prize in Economics laureate Paul Krugman (L) and Nobel Prize in Chemistry laureate Roger Tsien attend a news conference at the Royal Swedish Academy of Sciences in Stockholm , Sweden, December 7, 2008. REUTERS/Fredrik Persson/SCANPIX (SWEDEN). NO COMMERCIAL OR BOOK SALES. SWEDEN OUT. NO COMMERCIAL OR EDITORIAL SALES IN SWEDEN.