This combination photograph shows, from left to right: Shige

JAPAN - SEPTEMBER 09: This combination photograph shows, from left to right: Shigeru Ishiba, Japan's former defense minister, in Tokyo, on Sept. 25, 2007, Taro Aso, secretary general of the Liberal Democratic party(LDP), in Tokyo, on Aug. 31, 2007, Kaoru Yosano, Japan's economic and fiscal policy minister, in Tokyo, on Aug. 27, 2007, Yuriko Koike, former defense minister, in Tokyo, on April 20, 2007, and Nobuteru Ishihara, former land, transport, tourism minister, in Tokyo, on Sep. 23, 2003. Yosano, who's running to become Japan's next prime minister, said people shouldn't be pessimistic about the nation's economy. (Photo by Tomohiro Ohsumi/haruyoshi Yamaguchi/Bloomberg via Getty Images)