Fukuda Doctrine
Takeo Fukuda was an expert in economics. He took on the role of an ‘economic prime minister’ under Miki's administration from 1974 to 1976. During this time, he established the Ministerial Conference on Economic Measures, enabling cross-ministry and agency talks on finance, wage and labor issues.
Fukuda subsequently became the 67th prime minister of Japan, lasting for only one term from 1976 to 1978. However, he was not forced out of office before he had gotten two major diplomatic reforms executed. Under Fukuda cabinet, Japan conducted an omnidirectional peace diplomacy, and signed Japan-China Treaty of Peace and Friendship in 1978. He pushed forward Japan's pacifistic position while making an effort to strengthen relations with Asian countries.
Kakuei Tanaka
Under Ikeda's cabinet, Tanaka became chairman of the Policy Affairs Research Council, and eventually Minister of Finance. Tanaka's term as minister of finance saw some of the highest economic growth in Japanese history. When Satō became prime minister in 1965, Tanaka was slated to become the LDP's new secretary general, but the emergence of the Black Mist Scandal, where Tanaka was accused of shady land deals in Tokyo, meant that Takeo Fukuda got the job instead.