In this Tuesday, April 16, 2013, photo, Specialist Michael O'Mara, left, and trader Fred Demarco work on the floor of the New York Stock Exchange. World stock markets fell Friday April

 

              In this Tuesday, April 16, 2013, photo, Specialist Michael O
In this Tuesday, April 16, 2013, photo, Specialist Michael O'Mara, left, and trader Fred Demarco work on the floor of the New York Stock Exchange. World stock markets fell Friday April 26, 2013 after Japan faced an unwelcome drop in consumer prices. (AP Photo/Richard Drew)