Nikkei falls as most Asia markets take holiday

A woman and a child walk in front of the electronic stock board of a securities firm in Tokyo, Japan, Tuesday, May 1, 2012. Japan's Nikkei 225 fell Tuesday amid a stronger yen and signs of a slowing U.S. economy, while other key Asian stock indexes were closed for a public holiday. (AP Photo/Itsuo Inouye)
