Japan’s Prime Minister Fumio Kishida has pledged to push for wage increases among midsize enterprises and rural businesses, a move that could help boost the country’s economy and improve the livelihoods of its citizens. Speaking at the annual May Day rally organized by Rengo, Japan’s largest labor organization, Kishida urged the country to continue the momentum of wage hikes that have been set in motion by the “shunto” spring labor offensive this year.   Kishida’s presence at the May Day rally marks the first time in almost a decade that a Japanese prime minister has attended the event. The last time a prime minister was present at the rally was in 2014 when Shinzo Abe was in power. By attending the event, Kishida is signaling his commitment to improving the lives of Japan’s workers and strengthening ties with Rengo, a key support base of opposition parties.   Rengo, the umbrella organization of labor unions, has been at the forefront of efforts to increase wages in Ja...